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  • Inorganic Chemistry  (621)
  • Aerodynamics  (32)
  • Seismology  (18)
  • 1955-1959  (671)
  • 1950-1954
  • 1958  (671)
Collection
Keywords
Publisher
Years
  • 1955-1959  (671)
  • 1950-1954
Year
  • 1
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    Two types of microseisms (1958)
    In:  Journ. Geophys. Res., New York, Academic Press, vol. 63, no. 6, pp. 595-597, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1958
    Keywords: Micro seismicity ; Seismology ; NOISE ; JGR
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Spectrum of P and S in records of distance earthquakes (1958)
    In:  Bull. Geol. Soc. Am., Milano, Academic Press, vol. 69, no. 6, pp. 1686, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1958
    Keywords: Seismology ; Spectrum ; Body waves ; Teleseismic events
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    BIBLIOGRAPHY SEISMOLOGY
  • 3
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    Attenuation of seismic waves in the earth's mantle (1958)
    In:  Bull. Geol. Soc. Am., Milano, Academic Press, vol. 69, no. 6, pp. 1686, pp. L24306, (ISBN: 0534351875, 2nd edition)
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    Publication Date: 1958
    Keywords: Attenuation ; Seismology ; earth mantle
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    BIBLIOGRAPHY SEISMOLOGY
  • 4
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    Velocity of seismic waves in the earth's mantle (1958)
    In:  Bull. Geol. Soc. Am., Milano, Academic Press, vol. 69, no. 6, pp. 1686, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1958
    Keywords: Velocity analysis ; Seismology ; earth mantle
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    BIBLIOGRAPHY SEISMOLOGY
  • 5
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    A note on the theory of the electromagnetic seismograph (1958)
    In:  Bull. Earthquake Res. Inst. Tokyo Univ., Warszawa, Eötvös Lorand Geophysical Institute of Hungaria, vol. 36, no. 49, pp. 139-164, pp. 2342, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1958
    Keywords: Seismology ; Instruments
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    BIBLIOGRAPHY SEISMOLOGY
  • 6
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    The nature of seismic origins as inferred from seismological and geodetic observations (2) (1958)
    In:  Bull. Earthqu. Res. Inst., Tokyo Univ., Amsterdam, Elsevier Scientific Publishing Company, vol. 36, no. 5580, pp. 21-53, pp. 1012, (ISSN: 1340-4202)
    Details
    Publication Date: 1958
    Keywords: Seismology ; Dislocation ; Crustal deformation (cf. Earthquake precursor: deformation or strain) ; Geodesy
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    BIBLIOGRAPHY SEISMOLOGY
  • 7
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    Energy release in earthquakes (1958)
    In:  Geophys. J., New York, Conseil de l'Europe, vol. 1, no. 2, pp. 44-52, pp. B07307, (ISSN: 1340-4202)
    Details
    Publication Date: 1958
    Keywords: Seismology ; seismic Moment ; Elasticity ; Source ; Energy (of earthquakes) ; Two-dimensional ; Dislocation ; FROTH ; MSOBIESIAK
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    BIBLIOGRAPHY SEISMOLOGY
  • 8
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    Magnitude, statistics, energy (1958)
    Freeman
    In:  Bull., Open-File Rept., Elementary Seismology, San Francisco, Cal., Freeman, vol. 78, no. 87-17, pp. 338-349, (ISBN 0080419208)
    Details
    Publication Date: 1958
    Keywords: Textbook of geophysics ; Seismology ; Magnitude ; Energy (of earthquakes) ; Statistical investigations ; Scaling
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    BIBLIOGRAPHY SEISMOLOGY
  • 9
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    Why all this interest in the shape of the pulse ? (1958)
    In:  Geophys. Prosp., Amsterdam, Elsevier Scientific Publishing Company, vol. 6, no. 12, pp. 394-403, pp. L23303
    Details
    Publication Date: 1958
    Keywords: Discrimination ; Seismology ; Seismics (controlled source seismology) ; Deconvolution
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    BIBLIOGRAPHY SEISMOLOGY
  • 10
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    A note on the seismic pulse recorded from a mine explosion (1958)
    In:  Geophys. Prosp., Amsterdam, Elsevier Scientific Publishing Company, vol. 6, no. 12, pp. 433-437, pp. L23303
    Details
    Publication Date: 1958
    Keywords: Nuclear explosion ; Seismology ; Source ; Discrimination
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    BIBLIOGRAPHY SEISMOLOGY
  • 11
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    Progress report, Seismological Laboratory, California Institute of Technology, 1957 (1958)
    In:  Trans. Am. Geophys. Union, San Francisco, Pergamon, vol. 39, no. 3-4, pp. 721-725, pp. 1246
    Details
    Publication Date: 1958
    Keywords: Seismology ; Project report/description ; EOS
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    BIBLIOGRAPHY SEISMOLOGY
  • 12
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    Velocity of seismic waves in the earth's mantle (1958)
    In:  Trans., Am. Geophys. Union, Rome, California Institute of Technology Pasadena, vol. 39, no. 6, pp. 486-489, pp. L24306, (ISBN: 0534351875, 2nd edition)
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    Publication Date: 1958
    Keywords: Velocity analysis ; Seismology ; earth mantle ; EOS
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    BIBLIOGRAPHY SEISMOLOGY
  • 13
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    Caustics produced by waves through the earth's core (1958)
    In:  Geophys. Journ. Royal astr. Soc., Rome, California Institute of Technology Pasadena, vol. 1, no. 6, pp. 238-248, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1958
    Keywords: earth Core ; Waves ; Seismology ; Wave propagation ; GJRaS
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    BIBLIOGRAPHY SEISMOLOGY
  • 14
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    Wave velocities in the earth's core (1958)
    In:  Bull. Seism. Soc. Am., Rome, California Institute of Technology Pasadena, vol. 48, no. 6, pp. 301-314, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1958
    Keywords: Velocity analysis ; earth Core ; Earth model, also for more shallow analyses ! ; Seismology ; Velocity depth profile ; BSSA
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    BIBLIOGRAPHY SEISMOLOGY
  • 15
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    Microseisms (1958)
    Academic Press
    In:  Advances in Geophysics, New York, Academic Press, vol. 5, no. 6, pp. 53-92, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1958
    Keywords: Micro seismicity ; Seismology ; NOISE
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    BIBLIOGRAPHY SEISMOLOGY
  • 16
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    Attenuation of seismic waves in the earth's mantle (1958)
    In:  Bull. Seism. Soc. Am., Rome, California Institute of Technology Pasadena, vol. 48, no. 6, pp. 269-282, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1958
    Keywords: Attenuation ; Seismology ; earth mantle ; BSSA
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    BIBLIOGRAPHY SEISMOLOGY
  • 17
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    Elementary Seismology (1958)
    Freeman
    In:  San Francisco, Cal., 768 pp., Freeman, vol. 121, no. Publ. No. 12, pp. 127, (ISBN 0-521-66034-3, ISBN 0-521-66948-0 paper)
    Details
    Publication Date: 1958
    Keywords: Textbook of geophysics ; Seismology
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    BIBLIOGRAPHY SEISMOLOGY
  • 18
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    Appendix part III: VIII. Transit-Time Tables, Magnitude Charts (1958)
    Freeman
    In:  Bull., Open-File Rept., Elementary Seismology, San Francisco, Cal., Freeman, vol. 78, no. 87-17, pp. 687-690, (ISBN 0080419208)
    Details
    Publication Date: 1958
    Keywords: Textbook of geophysics ; Seismology ; Travel time ; Magnitude
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  • 19
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    Exploratory Wind-Tunnel Investigation to Determine the Lift Effects of Blowing over Flaps from Nacelles Mounted Above the Wing (1958)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: An exploratory wind-tunnel investigation has been made to determine the lift effects of blowing from nacelles over the upper surface of flaps on a model having a delta wing of aspect ratio 3. Several flap conditions were examined. High-pressure air was blown from an external-pipe arrangement supported above the wing to simulate jet-engine exhaust. The jet momentum- coefficient range was from 0 to 3.0 and the model angle of attack was 0 deg. The results of this limited investigation show that values of jet circulation lift coefficient larger than the Jet reaction were produced with blowing over flaps from nacelles mounted above the wing. 'I!heuse of double slotted flaps with the gap unsealed between the flaps and wing had a large detrimental effect on the lift capabilities. With these gaps sealed, larger lift coefficients were obtained when fantails were added to the nacelles. The longitudinal trim problems created by large diving moments were similar to those encountered with other jet-augmented-flap systems
    Keywords: Aerodynamics
    Type: NACA-TN-4298
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  • 20
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    Theoretical Calculations of Supersonic Wave Drag at Zero Lift for a Particular Store Arrangement (1958)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: An analysis, based on the linearized thin-airfoil theory for supersonic speeds, of the wave drag at zero lift has been carried out for a simple two-body arrangement consisting of two wedgelike surfaces, each with a rhombic lateral cross section and emanating from a common apex. Such an arrangement could be used as two stores, either embedded within or mounted below a wing, or as auxiliary bodies wherein the upper halves could be used as stores and the lower halves for bomb or missile purposes. The complete range of supersonic Mach numbers has been considered and it was found that by orienting the axes of the bodies relative to each other a given volume may be redistributed in a manner which enables the wave drag to be reduced within the lower supersonic speed range (where the leading edge is substantially subsonic). At the higher Mach numbers, the wave drag is always increased. If, in addition to a constant volume, a given maximum thickness-chord ratio is imposed, then canting the two surfaces results in higher wave drag at all Mach numbers. For purposes of comparison, analogous drag calculations for the case of two parallel winglike bodies with the same cross-sectional shapes as the canted configuration have been included. Consideration is also given to the favorable (dragwise) interference pressures acting on the blunt bases of both arrangements.
    Keywords: Aerodynamics
    Type: NACA-TN-4120
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  • 21
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    Heat-Transfer Measurements in Free Flight at Mach Numbers up to 14.6 on a Flat-Faced Conical Nose with a Total Angle of 29 Degrees (1958)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Skin-temperature measurements have been made at several locations on a flat-faced cone-cylinder nose which was flight tested on a fivestage rocket-propeller model to a Mach number of 14.64 and a free-stream Reynolds number of 2.0 x 10(exp 6), based on flat-face diameter, at an altitude of 66,300 feet. The copper nose had a 29 deg total-angle conical section which was 1.6 flat-face diameters long. The aerodynamic-heating rates determined from the temperature measurements reached 1,440 Btu/( sec) (sq ft) on the flat face. The heating rates near the center of the flat face agreed well at Mach numbers up to 13.6 with those obtained by a theory for laminar stagnation-point heating in equilibrium dissociated air (Avco Res. Rep. 1). At Mach numbers above 13.6, the heating rates at locations near the center of the flat face became progressively lower than stagnation-point theory and. were 29 percent lower at Mach number 14.6 at the end. of the test. The reason for this behavior of the heating on the central part of the flat face was not determined. Excluding the relatively low heating rates that occurred on the central part of the nose at the highest Mach numbers, the distribution of experimental heating along the innermost 0.79 of the flat-face radius, expressed as a percentage of stagnation-point heating, was in fair agreement with the distribution predicted by laminar theory. At a location of 0.71 radii from the stagnation point, the experimental heating was very near 130 percent of the theoretical stagnation-point rate at Mach numbers from 11 to 14.5. The experimental beating rates on the conical section of the nose were in good agreement with laminar-cone theory using the assumption of theoretical sharp-cone static pressure on the conical section.
    Keywords: Aerodynamics
    Type: NACA-RM-L57L03
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  • 22
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    Approximate Solutions for the Flow About Flat-Top Wing-Body Configurations at High Supersonic Airspeeds (1958)
    In:  CASI
    Details
    Publication Date: 2019-05-11
    Description: The flow about slender flat-top wing-body configurations traveling at high supersonic speeds and small angles of attack is investigated analytically. In the case of conical configurations, approximate algebraic solutions to the flow field are obtained. In the case of configurations which are conical at the vertex but curved in the stream direction, these solutions are combined with a slender-body approximation to the generalized shock-expansion method to obtain the flow downstream of the vertex. Surface pressures were obtained experimentally at Mach numbers from 3.0 to 6.0 and angles of attack up to 6 deg for several flat-top wing-body configurations. These configurations consisted of half-bodies of revolution mounted beneath thin highly swept wings. Three different bodies were employed. The two conical bodies consisted of one-half of a fineness-ratio-5 cone and one-half of a fineness-ratio-2-1/2 cone. The body of the third configuration consisted of one-half of a fineness-ratio-5 ogive. For the ogive configuration, the leading edges of the wing were curved and designed to just maintain the theoretically determined bow shock along the leading edge at a Mach number of 5.0 and an angle of attack of 3 deg. The predictions of the conical flow theory of this paper for the surface pressures are found to be in good agreement with experiment at Mach numbers of 5.0 and 6.0 up to angles of attack of approximately 3 deg. Estimated lift, drag, and pitching-moment coefficients, as well as maximum lift-drag ratio, are also in good agreement with existing experimental data at a Mach number of 5.0 for a conical configuration having an arrow plan-form wing. It is also found that the generalized shock-expansion method yields reasonable good agreement with experiment for the surface pressures on the half-ogive configuration at a Mach number of 5.0 and an angle of attack of 3 deg.
    Keywords: Aerodynamics
    Type: NACA-RM-A58F02
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  • 23
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    Tabulated Data From a Pressure-Distribution Investigation at Mach Number 2.01 of a 45 Deg Sweptback-Wing Airplane Model at Combined Angles of Attack and Sideslip (1958)
    In:  CASI
    Details
    Publication Date: 2019-05-11
    Description: A pressure-distribution investigation of a wing-body combination has been conducted in the Langley 4- by 4-foot supersonic pressure tunnel at a Mach number of 2.01. The model configuration consisted of an ogive-circular-cylinder body (fineness ratio of approximately ii) and a wing with 45 deg of sweepback at the quarter-chord line, an aspect ratio of 4, and a taper ratio of 0.2. Data were obtained on high-, mid-, and low-wing configurations and for the body and wing alone for a range of angles of attack and yaw from 0 deg to 15 deg. The tabulated pressure coefficients are presented in this report.
    Keywords: Aerodynamics
    Type: NASA-MEMO-10-15-58L
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  • 24
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    Free-Flight Investigation of Aerodynamic Heat Transfer to a Simulated Glide-Rocket Shape at Mach Numbers up to 10 (1958)
    In:  CASI
    Details
    Publication Date: 2019-05-11
    Description: Heat-transfer measurements were made on a simulated glide-rocket shape in free flight at Mach numbers up to 10 and free-stream Reynolds numbers of 2 x 10 based on distance along surface from apex and 3 x 10 based on nominal leading-edge diameter. The model simulated the bottom of a 75 deg delta wing at 8O deg angle of attack. The data indicated that for the test conditions a modified three-dimensional stagnation-point theory will predict to reasonable engineering accuracy the heating on a highly swept wing leading edge, the heating being reduced by sweep by the 3/2 power of the cosine of the sweep angle. The data also indicate that laminar heating rates over the windward surface of a highly swept flat glider wing at moderate angles of attack can be predicted with reasonable engineering accuracy by flat-plate theory using wedge local flow conditions and basing Reynolds numbers on lengths from the wing leading edge parallel to the surface center line.
    Keywords: Aerodynamics
    Type: NACA-RM-L58G03
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  • 25
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    Boundary-Layer-Transition Measurements in Full-Scale Flight (1958)
    In:  CASI
    Details
    Publication Date: 2019-05-11
    Description: Chemical sublimation has been employed for boundary-layer-flow visualization on the wings of a supersonic fighter airplane in level flight at speeds near a Mach number of 2.0. The tests have shown that laminar flow can be obtained over extensive areas of the wing with practical wing-surface conditions. In addition to the flow visualization tests, a method of continuously monitoring the conditions of the boundary layer has been applied to flight testing, using heated temperature resistance gages installed in a Fiberglas "glove" installation on one wing. Tests were conducted at speeds from a Mach number of 1.2 to a Mach number of 2.0, at altitudes from 35,000 feet to 56,000 feet. Data obtained at all angles of attack, from near 0 deg to near 10 deg, have shown that the maximum transition Reynolds number on the upper surface of the wing varies from about 2.5 x 10(exp 6) at a Mach number of 1.2 to about 4 x 10(exp 6) at a Mach number of 2.0. On the lower surface, the maximum transition Reynolds number varies from about 2 x 10(exp 6) at a Mach number of 1.2 to about 8 x 10(exp 6) at a Mach number of 2.0.
    Keywords: Aerodynamics
    Type: NACA-RM-H58E28
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  • 26
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    Aerodynamic Research on Fuselages with Rectangular Cross Section (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-17
    Description: The influence of the deflected flow caused by the fuselage (especially by unsymmetrical attitudes) on the lift and the rolling moment due to sideslip has been discussed for infinitely long fuselages with circular and elliptical cross section. The aim of this work is to add rectangular cross sections and, primarily, to give a principle by which one can get practically usable contours through simple conformal mapping. In a few examples, the velocity field in the wing region and the induced flow produced are calculated and are compared with corresponding results from elliptical and strictly rectangular cross sections.
    Keywords: Aerodynamics
    Type: NACA-TM-1414 , Jahrbuch 1942 der Deutschen Luftfahrtforschung; 263-279
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  • 27
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    Effects of Body Shape on the Drag of a 45 degree Sweptback-Wing-Body Configuration at Mach Numbers from 0.90 to 1.43 (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-17
    Description: An investigation was made of the effects of body shape on the drag of a 45 deg sweptback-wing-body combination at Mach numbers from 0.90 to 1.43. Both the expansion and compression fields induced by body indentation were swept back as the stream Mach number increased from 0.94. The line of zero pressure change was generally tangent to the Mach lines associated with the local velocities over the wing and body. The strength of the induced pressure fields over the wing were attenuated with spanwise distance and the major effects were limited to the inboard 60 percent of the wing semispan. Asymmetrical body indentation tended to increase the lift on the forward portion of the wing and reduce the lift on the rearward portion. This redistribution of lift had a favorable effect on the wave drag due to lift. Symmetrical body indentation reduced the drag loading near the wing-body juncture at all Mach numbers. The reduction in drag loading increased in spanwise extent as the Mach number increased and the line of zero induced pressure became more nearly aligned with the line of maximum wing thickness. Calculations of the wave drag due to thickness, the wave drag due to lift, and the vortex drag of the basic and symmetrical M = 1.2 body and wing combinations at an angle of attack of 0 deg predicted the effects of indentation within 11 percent of the wing-basic-body drag throughout the Mach number range from 1.0 to 1.43. Calculations of the wave drag due to thickness, the wave drag due to lift, and the vortex drag for the basic, symmetrical M = 1.2, and asymmetrical M = 1.4 body and wing combinations predicted the total pressure drag to within 8 percent of the experimental value at M = 1.43.
    Keywords: Aerodynamics
    Type: NASA-MEMO-10-23-58L
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  • 28
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    Experimental Wind-Tunnel Investigation of the Transonic Damping-in-Pitch Characteristics of Two Wing-Body Combinations (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-17
    Description: The results of an experimental wind-tunnel investigation of the damping in pitch of two wing-body combinations are presented. The tests were conducted in the Ames 14-foot transonic wind tunnel over a Mach number range from 0.60 to 1.18. Reynolds numbers varied from 2.3 million to 5.5 million. One model with a triangular wing of aspect ratio 2 having NACA 0003-63 sections was oscillated at an amplitude of 1.5 and a frequency of 17 cycles per second. The second model with a straight, tapered wing of aspect ratio 3 having 3-percent biconvex circular-arc sections was oscillated at an amplitude of 1.0 deg and a frequency of 21 cycles per second. The tests were made with the models at a mean angle of attack of 0 deg. The models were oscillated with a dynamic balance that was actuated by an electrohydraulic servo valve. The results of this investigation indicate the usefulness of this new apparatus. The experimental results of a previous damping-in-pitch investigation conducted in the Ames 6- by 6-foot supersonic wind tunnel at Mach numbers from 1.2 to 1.7 are included along with the theoretical results for this Mach number range. In the region of Mach numbers available for comparison, good agreement is shown to exist between the data obtained in the two facilities, except for some inconsistency in the slopes of the curves at M = 1.2 for the triangular wing. The results of this investigation clearly show that for the models tested the maximum values of the damping in pitch occur at Mach numbers very close to 1.0, and that abrupt changes in the pitch damping are encountered near sonic velocity.
    Keywords: Aerodynamics
    Type: NASA-MEMO-11-30-58A
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  • 29
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    An Investigation of the Drag Characteristics of a Tailless Delta-Wing Airplane in Flight, Including Comparison with Wind-Tunnel Data (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-16
    Description: A series of flight tests were conducted to determine the lift and drag characteristics of an F4D-1 airplane over a Mach number range of 0.80 to 1.10 at an altitude of 40,000 feet. Apparently satisfactory agreement was obtained between the flight data and results from wind-tunnel tests of an 0.055-scale model of the airplane. Further tests show the apparent agreement was a consequence of the altitude at which the first tests were made.
    Keywords: Aerodynamics
    Type: NASA-MEMO-10-8-58A
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  • 30
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    Aerodynamic characteristics at mach numbers from 2.5 to 3.5 of a canard bomber configuration designed for supersonic cruise flight (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-14
    Description: Resilts have been obtained from an investigation in the Langley Unitary Plan wind tunnel at Mach numbers from 2.5 to 3.5 of a canard-type configuration designed for supersonic cruise flight. Tests extended over an angle-of-attack range from about -4 deg to 11 deg and an angle-of-sideslip range from -4 deg to 6 deg. For the present tests, the results indicate that forebody deflection was an efficient means of providing a sizable positive pitching-moment shift with little or no increase in drag. The test configuration had a trimmed lift-drag ratio of approximately 6.0 at Mach numbers near 3.0 and at a Reynolds number of 2.52 X 10(exp 6). The configuration was both longitudinally and directionally stable. The lift-drag ratios are believed to be somewhat low in as much as the models used for the present tests had large-grain size transition strips fixed to the various surfaces and these strips added wave drag. Also, the model boundary-layer diverter is oversized with respect to a full-scale configuration and therefore contributes additional drag.
    Keywords: Aerodynamics
    Type: NACA-RM-L58G16
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  • 31
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    Investigation of the Static Lateral Stability and Aileron Characteristics of a 0.067-Scale Model of the Bell X-2 Airplane at Mach Numbers of 2.29, 2.78, 3.22, and 3.71 (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-13
    Description: Tests were performed in the high. Mach number test section of the Langley Unitary Plan wind tunnel to determine the static lateral stability. and aileron characteristics of a 0.067-scale model of the Bell X-2 airplane at Mach numbers of 2.29, 2. 78, 3.22, and. 3.71. The results of this investigation indicated that the directional stability of the model was low with directional instability occurring at Mach numbers higher than 3.1 and. angles of attack higher than about 5.0 deg (equivalent lift coefficient of about 0.18). The yaw due to aileron deflection was adverse and, with 10 deg of differential aileron deflection, large enough to overbalance the available directional restoring moment at all angles of attack higher than about 5.0 deg (equivalent lift coefficient of about 0.21) and Mach numbers higher than 2. 5. The model also had positive effective dihedral for all test attitudes and. Mach numbers. A combination of the lateral-stability parameters with the aileron characteristics to form a lateral-stability criterion for a maneuver using ailerons alone indicated that the model has characteristics which would. give unstable aperiodic behavior (divergence) over a large part of the test Mach number and angle-of-attack range.
    Keywords: Aerodynamics
    Type: NACA-RM-L57J28a
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  • 32
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    Some Effects of Horizontal-Tail Position on the Vertical-Tail Pressure Distributions of a Complete Model in Sideslip at High Subsonic Speeds (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: An investigation has been made in the Langley high-speed 7- by 10-foot tunnel of some effects of horizontal-tail position on the vertical-tail pressure distributions of a complete model in sideslip at high subsonic speeds. The wing of the model was swept back 28.82 deg at the quarter-chord line and had an aspect ratio of 3.50, a taper ratio of 0.067, and NACA 65A004 airfoil sections parallel to the model plane of symmetry. Tests were made with the horizontal tail off, on the wing-chord plane extended, and in T-tail arrangements in forward and rearward locations. The test Mach numbers ranged from 0.60 to 0.92, which corresponds to a Reynolds number range from approximately 2.93 x 10(exp 6) to 3.69 x 10(exp 6), based on the wing mean aerodynamic chord. The sideslip angles varied from -3.9 deg to 12.7 deg at several selected angles of attack. The results indicated that, for a given angle of sideslip, increases in angle of attack caused reductions in the vertical-tail loads in the vicinity of the root chord and increases at the midspan and tip locations, with rearward movements in the local chordwise centers of pressure for the midspan locations and forward movements near the tip of the vertical tail. At the higher angles of attack all configurations investigated experienced outboard and rearward shifts in the center of pressure of the total vertical-tail load. Location of the horizontal tail on the wing- chord plane extended produced only small effects on the vertical-tail loads and centers of pressure. Locating the horizontal tail at the tip of the vertical tail in the forward position caused increases in the vertical-tail loads; this configuration, however, experienced considerable reduction in loads with increasing Mach number. Location of the horizontal tail at the tip of the vertical tail in the rearward position produced the largest increases in vertical-tail loads per degree sideslip angle; this configuration experienced the smallest variations of loads with Mach number of any of the configurations investigated.
    Keywords: Aerodynamics
    Type: NASA-MEMO-10-5-58L
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  • 33
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    Basic Pressure Measurements at Transonic Speeds on a Thin 45 deg Sweptback Highly Tapered Wing with Systematic Spanwise Twist Variations (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: Pressure distributions are presented for a thin highly tapered untwisted 45 deg sweptback wing in combination with a body. These tests were made in the Langley 8-foot transonic pressure tunnel at both 1.0 and 0.5 atmosphere stagnation pressures at Mach numbers from 0.800 to 1.200 through an angle-of-attack range of -4 deg to 12 deg.
    Keywords: Aerodynamics
    Type: NASA-MEMO-10-20-58L
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  • 34
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    Turbulent Skin Friction at High Mach Numbers and Reynolds Numbers (1958)
    In:  CASI
    Details
    Publication Date: 2019-07-10
    Description: For a number of years now, experimenters have been making measurements of skin friction. Formerly, the main interest was at low Mach numbers; later, measurements were made at supersonic Mach numbers. However, almost all of these measurements were over a limited range of Reynolds numbers. On the other hand, these measurements fairly well determined the effects of Mach number and heat transfer on skin friction. The purpose of this paper is to give the results of skin-friction measurements in turbulent boundary layers at high Mach numbers and high Reynolds numbers where data have not previously existed. The equipment used was expressly designed to provide these conditions. As is well known, it is difficult to obtain high Mach numbers and high Reynolds numbers simultaneously with air in a wind tunnel. In order to avoid condensation, it is necessary to heat the air, with a resulting loss in density and Reynolds number. It is desirable, then, to use a gas that does not condense at high Mach numbers. This suggested helium, which was used as a working fluid in some of the tests. At high Mach numbers in a given wind tunnel, higher Reynolds numbers can be obtained with helium than with air, principally because no heating of the helium is required. The different ratios of specific heats also contribute to the increase. In using helium as a working fluid, it is, of course, necessary to determine the equivalence of air and helium in the turbulent boundary layer.
    Keywords: Aerodynamics
    Type: NACA-RM-A58D28
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  • 35
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    Aerodynamic Characteristics at a Mach Number of 6.8 of Two Hypersonic Missile Configurations, One with Low-Aspect-Ratio Cruciform Fins and Trailing-Edge Flaps and One with a Flared Afterbody and All-Movable Controls (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-14
    Description: An investigation has been made to determine the aerodynamic characteristics in pitch at a Mach number of 6.8 of hypersonic missile configurations with cruciform trailing-edge flaps and with all-movable control surfaces. The flaps were tested on a configuration having low-aspect-ratio cruciform fins with an apex angle of 5 degrees; the all-movable controls were mounted at the 46.7-percent body station on a configuration having a 10 degrees flared afterbody. The tests were made through an angle-of-attack range of -2 degrees to 20 degrees at zero sideslip in the Langley 11-inch hypersonic tunnel. The results indicated that the all-movable controls on the flared-afterbody model should be capable of producing much larger values of trim lift and of normal acceleration than the trailing-edge-flap configuration. The flared-afterbody configuration had considerably higher drag than the cruciform-fin model but only slightly lower values of lift-drag ratio.
    Keywords: Aerodynamics
    Type: NACA-RM-L58D24
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  • 36
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    NACA Conference on High-speed Aerodynamics. a Compilation of Papers Presented (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-14
    Description: No abstract available
    Keywords: Aerodynamics
    Type: NACA-TM-X-67369
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  • 37
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    Aerodynamic Characteristics of a 45 Deg Swept Wing Fighter Airplane Model and Aerodynamic Loads on Adjacent Stores and Missiles at Mach Numbers of 1.57, 1.87, 2.16, and 2.53 (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-14
    Description: An investigation was performed in the Langley Unitary Plan wind tunnel to determine the aerodynamic characteristics of a model of a 45 deg swept-wing fighter airplane, and to determine the loads on attached stores and detached missiles in the presence of the model. Also included was a determination of aileron-spoiler effectiveness, aileron hinge moments, and the effects of wing modifications on model aerodynamic characteristics. Tests were performed at Mach numbers of 1.57, 1.87, 2.16, and 2.53. The Reynolds numbers for the tests, based on the mean aerodynamic chord of the wing, varied from about 0.9 x 10(exp 6) to 5 x 10(exp 6). The results are presented with minimum analysis.
    Keywords: Aerodynamics
    Type: NACA-RM-L58C17
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  • 38
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    Aerodynamic Heating of Blunt Nose Shapes at Mach Numbers up to 14 (1958)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Results are presented from investigations of the aerodynamic heating rates of blunt nose shapes at Mach numbers up to 14. The wind-tunnel tests examined flat-faced cylinder stagnation-point heating rates over the Mach number range. The tests also examined heat transfer and angle of attack.
    Keywords: Aerodynamics
    Type: L-316
    Format: text
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  • 39
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    Schlieren Movies of the 8-Inch Diameter Rigid Parachute Model of the Cook Research Laboratory Taken During the Fourth Phase of Testing in the Langley Unitary Plan Wind Tunnel (1958)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Canopy Model IV was tested in four different configuration series. Shroud lines were used in the first three series of tests; none were used in the fourth series. Other variables were Mach number (1.77, 2.17, 2.76), dynamic pressure (290, 250, 155 lb per sq ft), camera speed, and attitude.
    Keywords: Aerodynamics
    Type: L-396
    Format: text
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  • 40
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    On Possible Similarity Solutions for Three-Dimensional Incompressible Laminar Boundary-Layer Flows Over Developable Surfaces and with Proportional Mainstream Velocity Components (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: Analysis is presented on the possible similarity solutions of the three-dimensional, laminar, incompressible, boundary-layer equations referred to orthogonal, curvilinear coordinate systems. Requirements of the existence of similarity solutions are obtained for the following: flow over developable surface and flow over non-developable surfaces with proportional mainstream velocity components.
    Keywords: Aerodynamics
    Type: NACA-TM-1437
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  • 41
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    Heat-Transfer and Friction Measurements with Variable Properties for Airflow Normal to Finned and Unfinned Tube Banks (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: A single-line correlation of both the heat-transfer and pressure- drop data for electrically heated unfinned tubes is obtained by evaluating the density in the Reynolds number, specific heat, thermal conductivity, and viscosity at the film temperature, and the density in the friction coefficient at the bulk temperature. The heat-transfer data for finned tubes also exhibit an effect of physical-property variation which is removed by evaluating all properties, including density, at the primary surface temperature, and using k* = 0.015 square root of T/530 for the thermal conductivity of air where T is the absolute temperature. The pressure drop for finned tubes is correlated by the use of bulk density in both the Reynolds number and friction coefficient. The data reported are for Reynolds numbers from 2000 to 35,000, surface temperatures from 600 to 1400 R, and an air inlet temperature of 530 R.
    Keywords: Aerodynamics
    Type: NASA-MEMO-10-9-58E , L-4880
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  • 42
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    Large-Scale Wind-Tunnel Tests of an Airplane Model with an Unswept, Aspect-Ratio-10 Wing, Two Propellers, and Blowing Flaps (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: An investigation was made to determine the lifting effectiveness and flow requirements of blowing over the trailing-edge flaps and ailerons on a large-scale model of a twin-engine, propeller-driven airplane having a high-aspect-ratio, thick, straight wing. With sufficient blowing jet momentum to prevent flow separation on the flap, the lift increment increased for flap deflections up to 80 deg (the maximum tested). This lift increment also increased with increasing propeller thrust coefficient. The blowing jet momentum coefficient required for attached flow on the flaps was not significantly affected by thrust coefficient, angle of attack, or blowing nozzle height.
    Keywords: Aerodynamics
    Type: NASA-MEMO-12-3-58A
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  • 43
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    Low-Speed Aerodynamic and Hydrodynamic Characteristics of a Proposed Supersonic Multijet Water-Based Hydro-Ski Aircraft with Upward-Rotating Engines (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: The low-speed aerodynamic and hydrodynamic characteristics of a proposed multijet water-based aircraft configuration for supersonic operation have been investigated. The design features include upward-rotating engines, body indentation, a single hydro-ski, and a wing with an aspect ratio of 3.0, a taper ratio of 0.143, 36.90 sweepback of the quarter-chord line, and NACA 65AO04 airfoil sections. For the aerodynamic investigation, with the flaps retracted, the model was longitudinally and directionally stable up to the stall. The all-movable horizontal tail was capable of trimming the model up to a lift coefficient of approximately 0.87. All flap configurations investigated had a tendency to become longitudinally unstable at stall. The effectiveness of the all-movable horizontal tail increased with increasing lift coefficient for all flap configurations investigated; however, with the large static margin of the configuration with the center of gravity at 0.25 mean aerodynamic chord, the all-movable horizontal tail was not powerful enough to trim all the various flapped configurations investigated throughout the angle-of-attack range. For the hydrodynamic investigation, longitudinal stability during take-offs and landings was satisfactory. Decreasing the area of the hydro-ski 60 percent increased the maximum resistance and emergence speed 40 and 70 percent, respectively. Without the jet exhaust, the resistance was reduced by simulating the vertical-lift component of the forward engines rotated upward. However, the jet exhaust of the forward engines increased the maximum resistance approximately 60 percent. The engine inlets and horizontal tail were free from spray for all loads investigated and for both hydro-ski sizes.
    Keywords: Aerodynamics
    Type: NASA-MEMO-10-13-58L
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  • 44
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    Effect of Nose Length, Fuselage Length, and Nose Fineness Ratio on the Longitudinal Aerodynamic Characteristics of Two Complete Models at High Subsonic Speeds (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: An investigation has been made of the effects of nose length, fuselage length, and nose fineness ratio on the static longitudinal aerodynamic characteristics of an airplane model with a swept wing and low tail and of a second model with a highly tapered wing of moderate sweep and a T-tail. The tests were conducted in the Langley high-speed 7- by 10-foot tunnel at Mach numbers from 0.60 to 0.92. The nose and body cross sections were circular. For either the model with the swept wing and low tail or the model with the highly tapered wing of moderate sweep and the T-tail, the effects of forebody changes amounted primarily to rotations of the pitching-moment curves (changes in static margin) over the test ranges of angle of attack and Mach number. For the range of body shapes investigated the longitudinal stability at low lift is decreased by an increase in nose length or in fuselage length or by a reduction in nose fineness ratio when the fuselage length is held constant. In general, the stability for all model configurations showed substantially the same variation with changes in forebody area moment. The forebody changes did not alter the angle of attack at which an unstable break occurred in the moment contribution of the T-tail but did alter somewhat the magnitude of the instability.
    Keywords: Aerodynamics
    Type: NASA-MEMO-10-10-58L
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  • 45
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    Free-Spinning-Tunnel Investigation of a 1/17 Scale Model of the Cessna T-37A Airplane (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: Results of an investigation of a dynamic model in the Langley 20-foot free-spinning tunnel are presented. Erect spin and recovery characteristics were determined for a range of mass distributions and center-of-gravity positions. The effects of lateral displacement of the center of gravity, engine rotation, nose strakes, and increased rudder area were investigated.
    Keywords: Aerodynamics
    Type: NASA-MEMO-3-1-59L , AF-AM-42 , L-237
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  • 46
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    Lift, Drag, and Pitching Moment of an Aspect-Ratio-2 Triangular Wing with Leading-Edge Flaps Designed to Simulate Conical Camber (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: An investigation was conducted to determine the effectiveness of leading-edge flaps in reducing the drag at lifting conditions of a triangular wing of aspect ratio 2.0. The flaps, deflected to simulate conically cambered wings having a wide range of design lift coefficients, were tested over a Mach number range of 0.70 to 2.22 through an angle-of-attack variation from -6 deg to +18 deg at a constant Reynolds number of 3.68 million based on the wing mean aerodynamic chord. A symmetrical wing of the same plan form and aspect ratio was also tested to provide a basis for comparison. The experimental results showed that with the flaps in the undeflected position, a small amount of fixed leading-edge droop incorporated over the outboard 5 percent of the wing semispan was as effective at high subsonic speeds as conical camber in improving the maximum lift-drag ratio above that of the symmetrical wing. At supersonic speeds, the penalty in minimum drag above that of the symmetrical wing was less than that incurred by conical camber. Deflecting the leading-edge flaps about the hinge line through 80 percent of the wing semispan resulted in further improvements of the drag characteristics at lift coefficients above 0.20 throughout the Mach number range investigated. The lift and pitching-moment characteristics were not significantly affected by the leading-edge flaps.
    Keywords: Aerodynamics
    Type: NASA-MEMO-10-5-58A
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  • 47
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    Supersonic Wave Interference Affecting Stability (1958)
    In:  CASI
    Details
    Publication Date: 2019-07-12
    Description: Some of the significant interference fields that may affect stability of aircraft at supersonic speeds are briefly summarized. Illustrations and calculations are presented to indicate the importance of interference fields created by wings, bodies, wing-body combinations, jets, and nacelles.
    Keywords: Aerodynamics
    Type: NACA-RM-L55L14a
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  • 48
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    Stability-Derivative Determination from Flight Data (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-26
    Description: A comprehensive discussion of the various factors affecting the determination of stability and control derivatives from flight data is presented based on the experience of the NASA High-Speed Flight Station. Factors relating to test techniques, determination of mass characteristics, instrumentation, and methods of analysis are discussed. For most longitudinal-stability-derivative analyses simple equations utilizing period and damping have been found to be as satisfactory as more comprehensive methods. The graphical time-vector method has been the basis of lateral-derivative analysis, although simple approximate methods can be useful If applied with caution. Control effectiveness has been generally obtained by relating the peak acceleration to the rapid control input, and consideration must be given to aerodynamic contributions if reasonable accuracy is to be realized.. Because of the many factors involved In the determination of stability derivatives, It is believed that the primary stability and control derivatives are probably accurate to within 10 to 25 percent, depending upon the specific derivative. Static-stability derivatives at low angle of attack show the greatest accuracy.
    Keywords: Aerodynamics
    Type: Flight Test Panel of the Advisory Group for Aeronautical Research and Development Meeting; Oct 20, 1958 - Oct 25, 1958; Copenhagen; Denmark
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  • 49
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    Wind-Tunnel Investigation of Some Effects of Wing Sweep and Horizontal-Tail Height on the Static Stability of an Airplane Model at Transonic Speeds (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-16
    Description: A research model of an airplane with a configuration suitable for supersonic flight was tested at transonic speeds in order to establish the effects on longitudinal and lateral stability of certain changes in both wing sweep and height of the horizontal tail. Two wings of aspect ratio 3 and taper ratio 0.15, one having the quarter-chord line swept back 30 deg and the other 45 deg, were each tested with the horizontal tail of the model in a low and in a high position. One configuration was also tested with fuselage strakes. The tests were made at Mach numbers from 0.60 to 1.17 and Reynolds numbers from 1.9 x 10(exp 6) to 2.6 x 10(exp 6). The results indicated that a low horizontal-tail position (below the wing-chord plane) gave positive longitudinal stability for the model for all angles of attack used (angles of attack up to 24 deg); whereas, a higher tail position (above the wing-chord plane) resulted in a large reduction in stability at moderate angles of attack. With the higher horizontal tail, the 30 deg-swept-wing model had somewhat more stability than the 45 deg-swept-wing model at subsonic Mach numbers. With the lower tail, the 45 deg-swept-wing model had slightly more stability at all Mach numbers. The model with the 30 deg swept wing had greater directional stability with the tail in the higher rather than the lower position, but the opposite was true for the 45 deg-swept-wing model. The directional stability decreased sharply at high angles of attack; this characteristic was alleviated by the use of fuselage strakes which, however, proved to be detrimental to the longitudinal stability of the model tested.
    Keywords: Aerodynamics
    Type: NASA-MEMO-10-3-58L
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  • 50
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    Aerodynamic Characteristics in Sideslip of a Large-Scale 49 deg Sweptback Wing-Body-Tail Configuration with Blowing Applied Over the Flaps and Wing Leading Edge (1958)
    In:  CASI
    Details
    Publication Date: 2019-08-16
    Description: An investigation has been conducted in the Langley full-scale tunnel to determine the aerodynamic characteristics in sideslip of a large-scale 490 sweptback wing-body-tail configuration having wing leading- edge and flap-blowing boundary-layer control. The wing and tails had an aspect ratio of 3.5, a taper ratio of 0.3, and NACA 65AO06 airfoil sections parallel to the plane of symmetry. The tests were conducted over a range of angles of attack of about -5 deg to 28 deg for sideslip angles of 0 deg, -5.06 deg, -10.15 deg, and -15.18 deg. Lateral and longitudinal stability and control characteristics were obtained for6a minimized blowing rate. The Reynolds number of the tests was 5.2 x 10(exp 6), corresponding to a Mach number of 0.08. The results of the investigation showed that sideslip to angles of about -15 deg did not require, from a consideration of the longitudinal characteristics, blowing rates over the wing leading edge or flap greater than that established as minimum at zero sideslip. The optimum configuration was laterally and directionally stable through the complete lift-coefficient range including the stall; however, maximum lift for sideslip angles greater than about 50 was seriously limited by a deficiency of lateral control. Blowing over the leading edge of the retreating wing in sideslip at a rate greater than that established as minimum at zero sideslip was ineffective in improving the lateral control characteristics. The optimum configuration at zero sideslip had no hysteresis of the aerodynamic parameters upon recovery from stall.
    Keywords: Aerodynamics
    Type: NASA-MEMO-10-11-58L
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  • 51
    Electronic Resource
    Electronic Resource
    Darstellung von Carbonsäurefluoriden mittels Kaliumfluorsulfinats (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 2553-2557 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Aus den Chloriden gesättigter, ungesättigter und aromatischer Mono- und Dicarbonsäuren lassen sich durch Umsetzen mit Kaliumfluorsulfinat die entsprechenden Säurefluoride unter milden Reaktionsbedingungen herstellen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580911202
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  • 52
    Electronic Resource
    Electronic Resource
    Die Synthese der Dehydro-digallussäure (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1542-1545 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Durch den kupferkatalysierten Austausch des Halogens der Trimethyläther-bromgallussäure gegen das Phenolation des Diphenylmethylenäther-gallussäure-methylesters wurde der Diphenyläther II erhalten, aus dem einige neue Methylderivate und auch freie Dehydro-digallussäure dargestellt wurden.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910726
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  • 53
    Electronic Resource
    Electronic Resource
    Imidoester, II. Die Reaktion von Imidoestern mit Säuren (Pinner-Spaltung) (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1555-1562 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Alkyl-trichloracetimidate (Ia) reagieren so rasch mit Säuren, daß normalerweise keine Imidoester-Salze II zu fassen sind, sondern sofort Spaltung in Alkylester und Trichloracetamid eintritt. Auf diese weise werden Alkylchloride und -flouride und Carbonsäure- und Phosphorsäureester dargestellt. Die Reaktion eignet sich zur Darstellung gemischter Phosphorsäureester vom Typ (CO)2P(O)OR′; der Mechanismus wird diskutiert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910729
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  • 54
    Electronic Resource
    Electronic Resource
    Masthead (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958) 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910801
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  • 55
    Electronic Resource
    Electronic Resource
    Bromalkyl-cyclopentanone, IV. Neue einfache Synthesen des Cyclobutan-, Cyclopentan-und des Cyclohexan-cyclopentanon-(2)-spirans (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1616-1620 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Bromalkyl-cyclopentanone (IIa-IId) lassen sich durch Kochen mit Kalilauge glatt in Cycloalkan-cyclopentanon-(2)-spirane überführen, von denen die Synthese der Spiroketone IIIa-IIId beschrieben wird. Weiter wird über die erste Darstellung des Bicyclo-[1.2.3]-octanons-(8) (IVb) berichtet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910809
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  • 56
    Electronic Resource
    Electronic Resource
    Derivate der Zucker-mercaptale, XIV. Synthese der 1.3.5-Tribenzoyl-2-desoxy-α-D-ribofuranose (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1657-1659 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Mercaptale der 2-Desoxy-D-ribose lassen sich bei tiefer Temperatur mit 1 Mol. Benzoylchlorid in Pyridin partiell zu den 5-Benzoyl-2-desoxy-D-ribosemercaptalen benzoylieren. Daraus gewinnt man durch Abspalten von Mercaptan die 5-Benzoyl-2-desoxy-D-ribose, die zur 1.3.5-Tribenzoyl-2-desoxy-α-D-ribofuranose benzoyliert wird.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910813
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  • 57
    Electronic Resource
    Electronic Resource
    Pteridine, VII. Über Methylierungen von Hydroxypteridinen (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1671-1680 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Bei der stufenweisen Methylierung des 6-Methyl-7-hydroxy- und 7-Hydroxy-2.4-dioxo-tetrahydropteridins werden Unterschiede zwischen der Substitutions-reihenfolge und der spektrophotometrisch bestimmten Dissoziations-Sequenz der aciden H-Atome festgestellt. Als Ursache dieses verschiedenartigen Verhaltens werden sterische Faktoren verantwortlich gemacht.
    Additional Material: 2 Ill.
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    URL: http://dx.doi.org/10.1002/cber.19580910816
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    Über Methylendesoxybenzoine, VIII. Über die Umsetzung von γ-Ketosäuren mit Ammoniumacetat (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1713-1719 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: β-Aroyl-propionsäuren kondensieren mit Ammoniumacetat unter Dimerisierung und Bildung von Pyrrolon-(2)-Derivaten.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910821
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    Über Umsetzungsprodukte des L-Tryptophans bei der sauren Eiweißhydrolyse (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1732-1744 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Im sauren Caseinhydrolysat werden Harman, Dihydroharman, Harman-carbonsäure-(3), Harmalan-carbonäure-(3) und Tetrahydroharman-carbonäure-(3) nachgewiesen. Vermutlich entsteht zunächst die Tetrahydroharman-dicarbonsäure-(1.3) als primäres Umsetzungsprodukt von L-Tryptophan mit Brenztraubensäure, welche wiederum aus L-Serin stammt. Wahrscheinlich enthält auch das fermenthydrolysierte Casein Spuren von Harman und Harmalan-carbonsäure-(3).
    Additional Material: 2 Tab.
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    Über die Isolierung von Glucogitaloxin aus den Blättern von Digitalis purpurea12. Mitteil. über Herzglykoside. (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1758-1763 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Glucogitaloxin = 16-Formyl-purpureaglykosid B wurde aus den Äthanolextrakten von bei der Ernte mit Trockeneis eingefrorenen Blättern der Digitalis purpurea durch Chromatographie an Silicagel isoliert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910827
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    Untesuchungen zur Komplexchemie der Brenztraubensäure, II. Über den Mechanismus der Decarboxylierung von Brenztraubensäure durch Aluminiumsalze (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1781-1788 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Decarboxylierung wäßriger Brenztraubensäure-Lösungen durch Aluminiumsalze verläuft mit großer Wahrscheinlichkeit über die Para-Brenztrauben-säure. Diese bildet sich, bevorzugt unter dem Einfluß von komplexbildenden Metallionen, durch aldolartige Verknüpfung dreier Moleküle Brenztraubensäure. Durch Abspaltung von Waser entsteht daraus eine β. γ-ungesättigte Carbonsäure, welche unter der Wirkung des Aluminiumsalzes decarboxyliert. Das entstehende hypothetische Produkt lagert sich anschließend in das γ-Lacton der α-Methyl-α-hydroxy-β′-carboxy-adipinsäure um. Auch die offenbar nach dem gleichen Schema verlaufende Decarboxylierung des dimeren Kondensations-produktes der Brenztraubensäure, der α-Keto-γ-valerolacton-γ-carbonsäure, unter Bildung von Brenzweinsäure wird durch Aluminiumsalze beschleunigt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910832
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    Darstellung von Acetylzuckern mit freiem Lactol-Hydroxyl und Synthese von einigen Disacchariden (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1794-1798 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Darstellung von Acetylzuckern mit freiem Lactol-Hydroxyl nach einer sehr vereinfachten Methode wird beschrieben.  -  Durch Kondensation dieser Substanzen mit Acetohalogenosen werden eine Reihe von neuen und einige schon bekannte nichtreduzierende Disaccharide als vollacetylierte Verbindungen gewonnen, diese in etwas besserer Ausbeute als bisher. Auch die Darstellung von Heptaacetyl-primverose ist verbessert. Weiterhin gelang die Darstellung einer 1-[β-D-Glucopyranosido]-fructose.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910835
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    Über ungesättigte Aldehyde und Ketone, II. Eine neue Reaktion magnesium-(lithium-)organischer Verbindungen (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1867-1880 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Umsetzungen von Verbindungen des allgemeinen Typs C6H5(CH3)N·[CH:CH]n·CO·R (R=H, n=1, 2; R=CH3, Alkyl-, Aryl-, n=1) mit magnesium-(lithium-) organischen Verbindungen R′ -  Me(R′=Aryl-, Aralkenyl-, Alkenyl-, Alkyl-, Acetylenyl-) führen in z. T. ausgezeichneten Ausbeuten zu ungesättigten Aldehyden und Ketonen des Typs R′·[CH:CH]n·CO·R.
    Type of Medium: Electronic Resource
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    Zur Darstellung von 5.6-Dihydro-benzo[f]chinolin-carbonsäure durch internucleare Cyclisierung (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1905-1909 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Durch Abbau entsprechender Carbonsäuren werden die Aminopyridine IIIa und IIIb dargestellt und die Cyclisierung der daraus gewonnenen Diazoniumsalze untersucht. Hierbei entstehen die Ester der Dihydro-benzochinolin-carbon-säuren IIa und IIb.
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    Perorthosäuren, I. Autoxydation cyclischer Acetale (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1935-1941 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Benzaldehyd-äthylenacetal Sowie die Äthylenacetale einiger substituierter Benzaldehyde sind leicht autoxydabel. In allen Fällen wurden kristallisierte Acetalhydroperoxyde isoliert. Diese gehen durch Reduktion oder durch hydrolytische Abspaltung von Wasserstoffperoxyd in Glykolester über. Die Bromierung des Benzaldehyd-äthylenacetals führt unter Ringöffnung zum β-Bromäthyl-benzoat.
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    URL: http://dx.doi.org/10.1002/cber.19580910922
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    Über Reduktionsversuche mit anorganischen Redoxsystemen an Austauschersäulen (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1955-1960 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Haftfestigkeit anorganischer Redoxsysteme an Kationen- und Anionen-austauschern und das Reduktionsvermögen der beladenen Austauscher wurden untersucht.
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    Die vier isomeren 1.4-Dimethyl-cyclohexanole-(2) (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1970-1978 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Durch Hydrierung von as-p-Xylenol mit Nickel unter Druck werden alle 4 isomeren hexahydrierten Xylenole, mit Platinmohr in Eisessig drei davon, aber in wesentlich anderem Mengenverhältnis erhalten, über die sauren Phthalate getrennt und durch Derivate charakterisiert. Durch Oxydation zu zwei Ketonen wird die paarweise Zugehörigkeit zur Reihe des cis- und des trans- 1.4-Dimethyl-cyclohexans erkannt; über die beiden Ketoxime werden durch alkalische Reduktion zwei Amine erhalten, aus deren Umsetzung mit salpetriger Säure die konfigurative Stellung des Hydroxyls der Alkohole folgt. Eine der beiden früure von Skita vorgenommenen Konfigurationszuordnungen wird als irrtümlich erwiesen.
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    γ-Amino-dicarbonsäuren aus Enaminen (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1996-1999 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Enamine werden mit α,β-ungesättigten Fettsäureestern in Cyclanon-carbon-säureester übergeführt und letztere durch Stickstoffwasserstoffsäure in γ-Amino-dicarbonsäuren umgewandelt. Auf diese Weise wurden γ-Amino-kork- und γ-Amino-azelainsäure erhalten.
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    Masthead (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958) 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580911001
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    Über Additionen aromatischer Aminoverbindungen an Acrylsäure-methylester bzw. Itaconsäure (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 2239-2246 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Durch Addition aromatischer Aminoverbindungen an Acrylsäure-methylester bzw. Itaconsäure wurden Abkömmlinge des β-Alanins und der Pyrrolidoncarbonsäure dargestellt, da diese Verbindungsklassen von physiologischem Interesse sind.
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    Über die Konstitution der durch alkalische oder thermische Kondensation von Dimethylolharnstoff entstehenden Produkte. Infrarotspektren einiger Verbindungen vom Urontyp (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 2032-2039 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die beim Erhitzen von reinem Dimethylolharnstoff und die bei der alkalischen Kondensation von Dimethylolharnstoff oder Harnstoff mit 2 Moll. Formaldehyd entstehenden schwerlöslichen Produkte müssen ihren Infrarotspektren nach trotz wechselnder Zusammensetzung ähnlich aufgebaut sein. Eine cyclische Struktur wird durch einen Vergleich mit den Infrarotspektren einiger Verbindungen vom Urontyp unwahrscheinlich gemacht. Zusammensetzung und Spektren der untersuchten Stoffe sprechen am ehesten für Strukturen mit Methylenätherbrücken.
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    Zur Chemie und Biochemie der „Cobalamine“, IX. Die Isolierung der Benzimidazol-und 5-Methyl-benzimidazol-cobalamin-Analoga aus Faulschlamm (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 2061-2065 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Aus Abwasserfaulschlamm von Hefefabriken werden die Benzimidazol- und 5-Methyl-benzimidazol-cobalamin-Analoga in kristallisierter Form gewonnen. Ihre Struktur wird durch Abbau zu den entsprechenden Nucleotiden und Basen sowie durch Vergleich mit den biosynthetisch hergestellten „Cobalaminen“ sichergestellt.
    Additional Material: 3 Ill.
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    URL: http://dx.doi.org/10.1002/cber.19580911009
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    Zur Frage des Ringschlusses bei der Indolsynthese nach Bischler mit m-Aminophenol (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 2089-2094 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die durch Kondensation von m-Aminophenol order m-Anisidin mit Benzoin gebildeten Derivate des 2.3-Diphenyl-indols enthalten die Hydroxy- bzw. Methoxygruppe in 4- und nicht in 6-Stellung.
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    Über die Darstellung von 1.12;2.3;10.11-Tribenzo-perylen und 1.12;4.5;8.9-Tribenzo-perylen (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 2151-2157 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Bei der Reaktion von 2.3;10.11-Dibenzo-perylen (I) mit Maleinsäureanhydrid wird ausschließlich das 1.12;2.3;10.11-Tribenzo-perylen-dicarbonsäureanhydrid (II) gebildet, bei dessen Decarboxylierung das 1.12;4.5;8.9-Tribenzo-perylen (XIII) entsteht. Dessen Struktur wurde durch eine unabhängige weitere Synthese bewiesen. Desgleichen wurde das isomere 1.12;4.5;8.9-Tribenzo-perylen (X) synthetisiert.
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    Zur Kenntnis der Chrom(II)-Salze und des Chrom(II)-oxyds, I (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 2143-2150 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Auflösung von reinstem Elektrolytchrom in Salzsäure, Bromwasserstoffsäure, Jodwasserstoffsäure, Schwefelsäure, Perchlorsäure, Ameisensäure, Essigsäure, oder Oxalsäure führt bei Luftabschluß zu Chrom(II)-Lösungen, die praktisch frei von dreiwertigem Chrom und infolge ihrer Reinheit ganz ungewöhnlich stabil sind.  -  Die Darstellung verschiedener, bisher nicht bekannter Salze aus wäßriger Lösung wird beschrieben, so u. a. des grünen Oxalats CrC2O4 · 2H2O, eines blauen Perchlorat-Hydrats sowie der blauen Hydrate CrCl2 · 4H2O, CrBr2 · 6H2O, CrJ2 · 6H2O und ihrer grünen isomeren Formen. Das bisher als extrem sauerstoffempfindlich bekannte blaue Sulfat CrSO4 · 5H2O ist in reinem Zustand an der Atmosphäre Jahre hindurch haltbar; es ist mit CuSO4 · 5H2O isotyp.
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    Über die Umsetzung einiger Alkoxy-p-benzochinone mit Äthylenimin (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 2216-2222 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Unter verschiedenen mit Äthylenimin umgesetzten Alkoxy-p-benzochinonen kommt dem 2.6-Dimethoxy-benzochinon-(1.4) eine besondere Bedeutung zu. Es liefert in unerwarteter Reaktion nebeneinander 2.6-Bis-äthylenimino-hydrochinon und 2.3.5-Tris-äthylenimino-benzochinon-(1.4).
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    Notiz über die Racematspaltung des DL-Ornithins (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 2418-2419 
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    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Aus synthet. Ornithin werden die optischen Isomeren in guter Ausbeute durch Racemattrennung mittels Dibenzoyl-D-weinsäure in wäßrigem Isopropylalkohol gewonnen.
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    URL: http://dx.doi.org/10.1002/cber.19580911126
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    α-Acylaminoacrylester aus Acylaminomalonestern (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 2427-2431 
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    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die aus den Acylaminomalonsäure-dialkylestern durch partielle Verseifung leicht erhältlichen Monoester kondensieren sich mit Formaldehyd in Gegenwart von Dimethylamin unter Decarboxylierung zu α-Acylaminoacrylestern.
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    URL: http://dx.doi.org/10.1002/cber.19580911128
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    Zur Kenntnis der Aluminiumtrialkylätherate (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 2446-2451 
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    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wird über die Darstellung und die Eigenschaften von Aluminiumtrialkylätheraten des Anisols berichtet. Diese sind im Gegensatz zu den analogen Ätheraten des Diäthyläthers ausgezeichnete Polymerisationbeschleuniger für die Herstellung von Polyäthylen nach ZIEGLER.
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    URL: http://dx.doi.org/10.1002/cber.19580911131
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    Über Darstellung und Abkömmlinge von α-Hydroxy-β-diketonen und α-Hydroxy-β-keto-aldehyden (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1100-1106 
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    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Durch säurekatalysierte Alkoholyse von α-Acetoxy-β-diketonen wurden α-Hydroxy-β-diketone dargestellt. In analoger Weise lieferte die durch Einwirkung von Blei(IV)-acetat auf das Dimethylacetal des Acetessigaldehyds gewonnene Acetoxyverbindung das Dimethylacetal des α-Hydroxy-β-ketobutyraldehyds.
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    Zur Überführung N-substituierter Carbonamide in Thioamide (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1129-1131 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Einige N-mono- und -disubstituierte Carbonamide wurden mit Benzolsulfochlorid in Pyridin in die Imido-sulfonate übergeführt und durch Einleiten von Schwefelwasserstoff thiolysiert. Diese Methode ergänzt die kürzlich beschriebene von Ketoximen ausgehende Synthese von Thioamiden, scheint ihr aber in Anwendungsbreite und Ausbeuten unterlegen zu sein.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910541
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    Synthesen des Heteroauxins, des Tryptamins und des SerotoninsAuszugsweise vorgetragen auf der Vortragstagung der Hans-Fischer-Gesellschaft in München am 19. und 20.9. 1957; vgl. Angew. Chem. 70, 56 [1958] (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1141-1145 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Kondensation des 1-Acetyl-indoxyls (I) mit Cyanessigsäure führt unter bestimmten Bedingungen zu [1-Acetyl-indolyl-(3)]-acetonitril (II). Aus diesen entsteht durch alkalische Verseifung Heteroauxin (III) und durch Reduktion mit Lithiumaluminiumhydrid, unter gleichzeitiger Abspaltung der N-Acetylgruppe, Tryptamin (IV). Das aus 2-Chlor-5-amino-benzoesäure leicht zugängliche 1-Acetyl-5-benzyloxy-indoxyl (XI) wurde durch analoge Behandlung in Serotonin (XIV) umgewandelt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910603
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  • 83
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    Zur Darstellung von DL-α-Chlor-buttersäure und höheren Homologen durch direkte Chlorierung (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1165-1169 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Chlorierung von Fettsäuren mittlerer Kettenlänge erfolgt durch Einleiten von Chlor unter Lichteinwirkung mit guten Ausbeuten. Während dabei für die niederen Homologen Schwefel und Phosphorpentachlorid als Mischkatalysatoren ausreichen, sind für die höheren Thionylchlorid oder aber Jod und Phosphor als Katalysatoren nötig. Die Umsetzung des Säurechlorids führt zu sehr guten Ergebnissen; Ester lassen sich schlecht chlorieren.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910607
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  • 84
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    Über das Harnstoffmonosulfonsäureamid (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1195-1200 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Während aus Chlorsulfonylisocyanat, CISO2NCO, und sekundären Aminen direkt N-Alkylderivate des Harnstoffsulfonsäure-amids entstehen, liefert die Umsetzung mit Ammoniak hauptsächlich das Harnstoffsulfonsäure-imid. Bei der Hydrolyse dieser Verbindung wird das gemischte Amid H2N—CO—NH—SO2—NH2 erhalten.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910611
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  • 85
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    Chemische Synthese von Oligo- und Polysacchariden, I (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1214-1216 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Freie Zucker lassen sich, gelöst in Dimethylsulfoxyd, durch H-Ionen-Katalyse in ein Gemisch von Oligo- und Polysacchariden überführen: beschrieben am Beispiel der D-Glucose. Die Polysaccharide werden von den Oligosacchariden durch Dialyse (Cellophan) befreit und in der Ultrazentrifuge untersucht. Durch totale Hydrolyse wird D-Glucose zurückgewonnen.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910615
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  • 86
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    Eine neue Synthese von 2-Imino-thiazolidin (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1239-1241 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: β-Brom-äthylamin-hydrobromid setzt sich mit Thioharnstoff zum S-[β-Aminoäthyl]-isothioharnstoff-dihydrobromid um. Dieses Salz cyclisiert sich beim Erhitzen praktisch quantitativ zum 2-Imino-thiazolidin-hydrobromid (II).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910620
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  • 87
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    Synthesen mit Pyridyl-pyridinium-halogeniden. Einführung der substituierten Aminogruppe in die 4-Stellung des Pyridinkerns (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1266-1273 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Aus N-Pyridyl-(4)-pyridiniumchlorid-hydrochlorid oder dem daraus leicht erhältlichen Pyridyl-(4)-phenyl-äther werden mit primären und sekundären Aminen substituierte 4-Amino-pyridine gewonnen. Der Reaktionsmechanismus und, damit verbunden, die Stellungsabhängigkeit der Umsetzung werden untersucht und diskutiert.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910622
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  • 88
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    Zur Umsetzung geminaler Dihalogen-Verbindungen mit Pyridinbasen (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1295-1300 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Benzal-bis-pyridiniumbromid gibt ein Betain, das formal nur aus Benzaldehyd und Pyridin (1:1) zusammengesetzt ist und das alkalisch und sauer in diese Bestandteile zerfällt. Salz und Betain geben mit Nitrosodimethylanilin/Natriumcyanid das Nitron des Benzoylcyanids. - Das nur unter bestimmten Bedingungen erhältliche Methylen-bis isochinoliniumbromid wird charakterisiert; das entsprechende Bis-chinoliniumsalz existiert nicht.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910627
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  • 89
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    Einfluß der Esterstruktur auf die Umsetzungsgeschwindigkeit sowie die Lage der PH-Wirkungsoptima bei der metallionenkatalytischen Spaltung von Phosphorsäureestern (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1322-1329 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Für die bei der metallionenkatalytischen Spaltung von Estern der Phosphorsäure auftretende Substratspezifität dürfte in erster Linie die partielle Polarisierung der Esterbindung ausschlaggebend sein, da die Zerfallsgeschwindigkeit des Reaktionszwischenproduktes vornehmlich den Umsatz bestimmt. Die geringere Spaltungsgeschwindigkeit der Di-Ester gegenüber derjenigen der Mono-Ester ist auf Affinitäts-Unterschiede der beiden Substratgruppen zum Katalysator zurückzuführen. - Elektronegative Substituenten in der Estermolekel bedingen nicht nur raschere Hydrolyse, sondern gleichzeitig auch eine Verschiebung der pH- Spaltungsoptima gegen das neutrale Gebiet hin.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910631
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  • 90
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    Über den Verlauf der Michael-Addition von Dihydroresorcin an Nitroolefine (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1344-1347 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Bei der Michael-Addition von Dihydroresorcin an ω-Nitrostyrol und 1-Nitro-2-methyl-äthylen wurden Derivate des 5.6.7.8-Tetrahydro-benzoxazin-oxyds erhalten, während mit Nitroäthylen als einziges Reaktionsprodukt 1.1-Bis-[2-nitro-äthyl]-cyclohexandion-(2.6) isoliert wurde. Das Reaktionsprodukt aus ω-Nitrostyrol und Dihydroresorcin ergab bei der Hydrolyse mit Salzsäure α-Phenyl-γ-keto-korksäure. Die katalytische Hydrierung führte zu 3-Phenyl-4.5.6.7-tetrahydro-indolon-(4) und der entsprechenden Hexahydroverbindung.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910635
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  • 91
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    Masthead (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958) 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910701
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  • 92
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    Über die spontane Polymerisation des Phenylisocyanids; ein neuer Weg in die Indigo-ReiheDie vorliegende Arbeit wurde unter Projekt 116-B der OHIO STATE UNIVERSITY RESEARCH FOUNDATION mit Unterstützung der OLIN MATHIESON CHEMICAL CORPORATION, New York, N. Y. durchgeführt.Herrn Dir. Dr. Winfried Hentrich zum 60. Geburtstage gewidmet (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1380-1387 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Bei der spontanen Polymerisation des Phenylisocyanids bei Raumtemperatur entsteht neben Harzen ein blauer Farbstoff, der isoliert und als Indigo-dianil erkannt wurde. Substituierte und homologe aromatische Isocyanide liefern, wenn überhaupt, nur Spuren analoger Farbstoffe. Der Mechanismus dieser neuen, einfachen Indigo-Synthese wird diskutiert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910705
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  • 93
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    Weitere Versuche mit α-Pyridoin and α-Pyridil (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1404-1410 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Durch „topochemische“ Umsetzung von festem α-Pyridoin mit Benzoylchlorid wird das Dibenzolderivat (als Hydrochlorid) erhalten. Dieses und das früher analog hergestellte Diacetylderivat erleiden schon beim Kochen mit Äthanol Äthanolyse unter Bildung der Monoacylderivat der Ketol-Form. p-Toluol-sulfonsäurechlorid dehydriert α-Pyridoin in Pyridinlösung zum α-Pyridil.  -  Bei Umsetzungen mit Phenyl- und Methylphenylhydrazin verhält sich α-Pyridoin z. T. anders als das Benzoin.  -  α-Pyridoin bildet eine schwarzviolette, nicht sehr beständige 1:1-Kupfer-Komplexverbindung.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910709
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  • 94
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    Über das Diazoketon „Azi-α-pyridil“ (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1411-1415 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Synthese und einige Umwandlungen des Diazoketons „Azi-α-pyridil“ werden beschrieben.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910710
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  • 95
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    Nucleophile aromatische Substitutionen, III. Weiteres zur Reaktion der Fluor-naphthaline mit lithiumorganischen Verbindungen (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1438-1452 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Eine verbesserte Analysenmethode gestattet es, die bei der Reaktion des 2-Fluor naphthalins mit Phenyl-lithium und nachfolgender Carboxylierung entstehenden drei isomeren Phenyl-naphthoesäuren quantitativ zu erfassen; die Umsetzung wird über 1.2- und 2.3-Naphthin als Zwischenstufen formuliert. Der über 1.2-Naphthin reagierende Anteil liefert 2-Phenyl-1- und 1-Phenyl-2-naphthoesäure im gleichen Verhältnis, gleichgültig ob man von 1- oder 2-Fluor-naphthalin ausgeht. 1-Fluor-naphthalin gibt mit überschüssigen n-Butyl-lithium nach Carboxylierung die beiden 1.2-isomeren n-Butyl-naphthoesäuren sowie mit tert. Butyl-lithium nach Hydrolyse 1- und 2-tert.Butyl-naphthalin. Das intermediäre 1.2-Naphthin addiert dabei die lithiumorganischen Verbindungen unabhängig von deren Raumbedarf im konstanten Verhältnis 66 : 34 in den Positionen 2 und 1. Für den Vorzug der Anlagerung in 2 werden elektronische Faktoren verantwortlich gemacht.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910714
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  • 96
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    Isochinolin, II. 3.4-Dihydro-isochinolin-N-oxyd (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1488-1494 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 2-[β-Brom-äthyl]-benzaldehyd reagiert mit Hydroxylamin unter Ringschluß zu 3.4-Dihydro-isochinolin-N-Oxyde (II). Weitere N-Oxyde werden nach dem gleichen Verfahren hergestellt. II geht bei 250° in Isochinolin, beim Erhitzen mit Acetanhydrid in 2-Acetyl-1-oxo-1.2.3.4-tetrahydro-isochinolin über. Auch aus Pyryliumsalzen lassen sich mit Hydroxylamin N-Oxyde herstellen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910719
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  • 97
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    Zur Kenntnis des Propan-disulfonsäure-(1.3)-anhydrids, I. Darstellung und Reaktionen des Anhydrids (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1512-1515 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Propan-disulfonsäure-(1.3)-anhydrid läßt sich mit Ausbeuten von 90% und darüber gewinnen, wenn man die Disulfonsäure mit Phosphoroxychlorid 1 Stde. auf 80° erwärmt. Es reagiert leicht mit Ammoniak, Aminen und Alkoholaten.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910722
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  • 98
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    Dioxa-dihydrocöranthryl, ein eingeebnetes Triphenylmethylradikal (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1801-1805 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Das durch zwei Ätherbrücken in ebener Anordnung stabilisierte Triphenylmethyl ist in Lösung und im kristallisierten Zustand praktisch vollständig dissoziiert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910902
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  • 99
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    Über Umsetzungen von α-Ketonitrilen, V. Über die Verwendung von α-Ketonitrilen zur C-AcylierungVorgetragen bei der Nordwestdeutschen Chemiedozententagung am 28. IV. 1958 in Marburg. (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1824-1829 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: In Gegenwart von Trialkylaminen lassen sich aromatische α-Ketonitrile gut zur Acylierung von Verbindungen mit aktiver Methylengruppe verwenden. Diese Acylierungsmethode ermöglicht die Darstellung von C-Monoacylverbindungen unter milden Bedingungen. Analog reagieren Cyanameisensäure-äthylester und Cyanameisensäure-diäthylamid unter Einführung der Carbäthoxy- bzw. Carbamidgruppe.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19580910906
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  • 100
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    Synthesen stickstoffhaltiger Heterocyclen, XIX. Atropisomerie bei einer Bi-[1.2.3-triazolyl]-Verbindung (1958)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 91 (1958), S. 1851-1855 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Eine Dicarbonsäure der Bi-[1.2.3-triazolyl]-Reihe wurde in die Spiegelbild-isomeren getrennt. Die optische Aktivität erklärt sich aus der Behinderung der freien Drehbarkeit der beiden Triazolringe.
    Additional Material: 2 Tab.
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    URL: http://dx.doi.org/10.1002/cber.19580910910
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