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  • Inorganic Chemistry  (14)
  • [abr] STobRV RNA; satellite tobacco ringspot virus RNA  (2)
  • [abr] [αS]rNTP; nucleoside-5'-O-(1-thiotriphosphate)  (2)
  • background troposphere  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 156 (1988), S. 340-347 
    ISSN: 0006-291X
    Keywords: [abr] D; promoter distal region of transcript ; [abr] M; monomeric STobRV RNA ; [abr] P; promoter proximal region of transcript ; [abr] PAGE; polyacrylamide gel electrophoresis ; [abr] STobRV RNA; satellite tobacco ringspot virus RNA ; [abr] TobRV; tobacco ringspot virus ; [abr] [αS]rNTP; nucleoside-5'-O-(1-thiotriphosphate) ; [abr] cM; circular monomeric STobRV RNA
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 156 (1988), S. 340-347 
    ISSN: 0006-291X
    Keywords: [abr] D; promoter distal region of transcript ; [abr] M; monomeric STobRV RNA ; [abr] P; promoter proximal region of transcript ; [abr] PAGE; polyacrylamide gel electrophoresis ; [abr] STobRV RNA; satellite tobacco ringspot virus RNA ; [abr] TobRV; tobacco ringspot virus ; [abr] [αS]rNTP; nucleoside-5'-O-(1-thiotriphosphate) ; [abr] cM; circular monomeric STobRV RNA
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of atmospheric chemistry 22 (1995), S. 243-249 
    ISSN: 1573-0662
    Keywords: acetaldehyde ; background troposphere ; concentration distribution ; aircraft ; sampling technique
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Geosciences
    Notes: Abstract A series of 72 measurements of the acetaldehyde (CH3CHO) mixing ratio were made in the lower troposphere during TROPOZ II. These measurements are the first ever made of the background level of this trace gas in the free troposphere. The data show a vertical decrease of the CH3CHO mixing ratio with increasing altitude and indicate higher CH3CHO concentrations in the Northern Hemisphere — in general agreement with a model-derived average CH3CHO distribution. Deviations of the observed CH3CHO mixing ratios from the modelled mean distribution are correlated with similar deviations in the corresponding HCHO mixing ratios.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of atmospheric chemistry 22 (1995), S. 251-269 
    ISSN: 1573-0662
    Keywords: formaldehyde ; background troposphere ; concentration distribution ; aircraft ; sampling technique ; methane oxidation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Geosciences
    Notes: Abstract A series of 149 measurements of the HCHO mixing ratio were made between 0 and 10 km altitude and 70° N to 60° S latitude during TROPOZ II. The data show a vertical decrease of the HCHO mixing ratio with altitude at all latitudes and a broad latitudinal maximum in the HCHO mixing ratio between 30° N and 30° S at all altitudes. The measured mixing ratios of HCHO are considerably higher than those expected from CH4 oxidation alone, but agree broadly with the average latitude by altitude distribution of HCHO derived by a 2D model including emissions of C1–C7 hydrocarbons. A number of the regional scale deviations of the measured HCHO distribution from the average modelled one can be explained in terms of the local wind field.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 102 (1969), S. 459-468 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 2-Amino-2-desoxy-D-glucit reagiert mit Aceton zur Diisopropylidenverbindung 9, die mit Chlorameisensäure-äthylester das cyclische Carbamat 11 liefert. Durch partielle Hydrolyse ist die 5.6-O-Isopropylidengruppe abspaltbar zu 12, welches durch Perjodatspaltung in die Pentose 13 übergeführt werden kann. Bei saurer Hydrolyse von 13 erfolgt spontan Ringschluß zur 4-Amino-4-N.5-O-carbonyl-4-desoxy-L-xylofuranose (17), einem Zucker vom Pyrrolidin-Typ. 17 und seine Derivate 15 und 16 zeigen eine Abweichung von der Hudsonschen Isorotationsregel.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Freie 4-Amino-4.5-didesoxy-L-xylose und 4-Amino-4-desoxy-L-xylose wurden durch alkalische Spaltung aus ihren Derivaten 7 und 6 dargestellt und in ihren Reaktionen untersucht. Beide Verbindungen weisen in Lösung ein Gleichgewicht zwischen Pyrrolidin-Formen 11, 12, Δ1-Pyrrolin-Formen 13, 14 und den Dimeren 9, 10 auf, in dem die Dimeren 9, 10 weit überwiegen. Die Struktur der erhaltenen Dimeren 9, 10 folgt aus den NMR-Spektren von 9 und seiner Derivate und aus der Spaltung des N-Acetats 20 in 12 und 15. Die Dimeren werden durch Hydrierung, mit Schwefeldioxid und mit Blausäure glatt in monomere Derivate zerlegt. Sie sind gegenüber Salzsäurebehandlung überraschend stabil und bilden keine Pyrrolderivate.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 103 (1970), S. 1621-1630 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Monosaccharides Containing Nitrogen in the Ring, XXVII. Pyrolytic Rearrangement of 4-Amino-4-deoxy-L-xylose to 4-Amino-4-deoxy-L-lyxosePyrolysis of the periodate degradation product 2 results in the rearrangement of the L-xylo-to the L-lyxo-configuration and the formation of 4-amino-4-N, 5-O-carbonyl-2,3-O-isopropy-liden-4-deoxy-α-L-lyxofuranose (5). Free 4-amino-4-deoxy-L-lyxose is formed from 5 via the bisulfite adduct 13, which exists as an equilibrium mixture of the pyrrolidine-forms 14 ⇋ 15 ⇋ 18 The bis-pyrrolidine-form 18 predominates under anhydrous conditions. The dimeric structure of 18 is established by mass spectra of the pentaacetate 16 and the TMS-ether 17.
    Notes: Durch Pyrolyse des Perjodat-Spaltproduktes 2 erfolgt Umlagerung der L-xylo-in die L-lyxo-Konfiguration, und es wird 4-Amino-4-N.5-O-carbonyl-2.3-O-isopropyliden-4-desoxy-α-L-lyxofuranose (5) erhalten. Aus 5 ist über das Schwefligsäure-Addukt 13 freie 4-Amino-4-desoxy-L-lyxose darstellbar, die im Gleichgewicht der Pyrrolidin-Formen 14 ⇋ 15 ⇋ 18 vorliegt. Die Bis-Pyrrolidin-Form 18 überwiegt stark in der wasserfreien Substanz. Die dimere Struktur von 18 ergibt sich aus den Massenspektren des Pentaacetats 16 und des TMS-Äthers 17.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 102 (1969), S. 1102-1116 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Additionsgeschwindigkeit des N-Methyl-C-phenyl-nitrons an Äthyl-acrylat zeigt eine geringe inverse Abhängigkeit von der Solvenspolarität. Die Aktiverungsentropien der Additionen and drei Dipolarophile betragen -23 bis -32 Clausius. Die dilatometrisch gemessenen Additionskonstanten obigen Nitrons mit 36 Dipolarophilen werden mit Skalen der Dipolarophilen-Aktivität gegenüber anderen 1.3-Dipolen verglichen. Die Additionskonstanten von 21 Nitronen mit Äthyl-crotonat erstrecken sich über 5 Zehnerpotenzen.  -  Die einstufige Mehrzentren-Addition trägt dem Material am besten Rechnung.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 126 (1993), S. 225-237 
    ISSN: 0009-2940
    Keywords: Anthracene derivatives ; Magnesium anthracene inner complexes ; 13C CP/MAS NMR spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Preparation and Characterization of Inner Complexes of AnthrylenemagnesiumAnthracene derivatives containing ether or amino groups in 9- or 9,10-position (1 - 10) react with magnesium to form new magnesium anthracene inner complexes (11 - 20). These complexes as well as their organic starting materials have been extensively characterized by spectroscopy and chemical means. It was found that solvent ligands which are present in all magnesium anthracene complexes known to date can be partially or totally replaced by inner complexation. For some of the new magnesium anthracene inner complexes the complex formation rates have been determined.
    Additional Material: 3 Ill.
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 204 (1932), S. 291-304 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Der Wasserstoffperoxydzerfall unter dem Einfluß von Platin- mohr als Katalysator folgt annähernd der Gleichung für monomolekulare Reaktionen.
    Additional Material: 4 Ill.
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