ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 206 (1932), S. 356-356 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 110 (1977), S. 2398-2400 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 118 (1985), S. 3166-3171 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 1,3-Dithienium- and 1,3-Dithiolenium Salts, IV. 1,3-Dithian-2-ylium Tetrafluoroborates - New Agents for the Synthesis of 1-DeuterioaldehydesThe 1,3-dithian-2-ylium tetrafluoroborates 3 react in good yields with sodium borohydride (4) to give the 1,3-dithianes 6 and with sodium borodeuteride (5) to form the precursors 7 of 1-deuterated aldehydes 8. Three 1-deuterioaldehydes 8 are synthesized exemplarily by dethioacetalization of 7.
    Notes: Die 1,3-Dithian-2-ylium-tetrafluoroborate 3 reagieren in guten Ausbeuten mit Natriumborhydrid (4) zu den 1,3-Dithianen 6 und mit -deuterid (5) unter Bildung der Vorläufer 7 von 1-deuterierten Aldehyden 8. Exemplarisch werden drei 1-Deuterioaldehyde 8 durch Dethioacetalisierung von 7 synthetisiert.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 99 (1966), S. 3721-3727 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Aus dem Verhältnis der Intensitäten der IR-aktiven CO- und NO-Valenzschwingungen läßt sich der Bindungswinkel zwischen äquivalenten CO- und NO-Gruppen ermitteln. Für eine Reihe von Metallcarbonyl- und -nitrosyl-Verbindungen stimmen die nach dieser Methode erhaltenen Winkel gut mit den erwarteten bzw. aus Röntgenstrukturuntersuchungen bekannten Werten überein.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 114 (1981), S. 3467-3470 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: On the Synthesis of Some Imino Pentafluorosulfanyl DerivativesFrom the reaction of SF5NSCl2 and Ag2O in nitromethane SF5NSO (1) is isolated. The also obtained 2 is probably formed form 1. In the presence of CsF 1 and Cl2 will give SF5NSOCIF (4)
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 118 (1985), S. 3159-3165 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 1,3-Dithienium- and 1,3-Dithiolenium Salts, III. Synthesis of Cyclic Dithioacetals of β-Keto Esters from Ketene Silyl AcetalsThe 1,3-dithian-2-ylium tetrafluoroborates 3, available by different methods, react in good yields with the ketene silyl acetals 2 to give the new cyclic dithioacetals 4 which are deacetalized to the β-keto esters 5 and 9.
    Notes: Die durch verschiedene Methoden erhältlichen 1,3-Dithian-2-ylium-tetrafluoroborate 3 reagieren in guten Ausbeuten mit den Keten-silylacetalen 2 zu den neuen cyclischen Dithioacetalen 4, die sich präparativ gut zu den β-Ketoestern 5 bzw. 9 spalten lassen.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 118 (1985), S. 1798-1808 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 1,3-Dithienium- and 1,3-Dithiolenium Salts, II. Synthesis of Monocyclothioacetalized 1,3-Diketones from Silyl Enol EthersThe 1,3-dithienium and 1,3-dithiolenium salts 3, available from the dithiols 1 or the cyclic thioacetals 4 (n = 2, 3) by reaction with the acyl chlorides 2, trityl tetrafluoroborate (5), and sulfuryl chloride (7), react in good yields with the silyl enol ethers 10 to give the new monocyclothioacetalized 1,3-Diketones 11. The synthetic of 11 as partially protected 1,3-Diketones is demonstrated exemplarily by dethioacetalization to the 1,3-dicarbonyl compounds 13.
    Notes: Die aus den Dithiolen 1 oder den cyclischen Thioacetalen 4 (n = 2, 3) durch Umsetzung mit den Acylchloriden 2, Trityl-tetrafluoroborat (5) und Sulfurylchlorid (7) erhältlichen 1,3-Dithienium-bzw. 1,3-Dithioleniumsalze 3 reagieren in guten Ausbeuten mit den Silylenolethern 10 zu den neuen monocyclothioacetalisierten 1,3-Diketonen 11. Das synthetische Potential von 11 als partiell geschützten 1,3-Diketonen wird exemplarisch durch Dethioacetalisierung zu den 1,3-Dicarbonylverbindungen 13 demonstriert.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 113 (1980), S. 2430-2433 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Sulfur-Sulfur Difluoride ImidesHg(NSF2)2 (1) reacts with S2Cl2 to give (SNSF2)2 (4). From OSCl2 or SF5NSCl2 and 1 OSF—NSF2 (6) and F5S—NSF—NSF2 (8) are prepared. The reaction mechanism and spectroscopic data are discussed.
    Notes: Hg(NSF2)2 (1) reagiert mit S2Cl2 zu (SNSF2)2 (4). Aus OSCl2 bzw. SF5NSCl2 und 1 werden OSF—NSF2 (6) bzw. F5S—NSF—NSF2 (8) dargestellt. Über den Mechanismus sowie über spektroskopische Untersuchungen wird berichtet.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 116 (1983), S. 1739-1750 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis of Stable Carbenium Salts from Cyclic Thioacetals - 1,3-Dithienium- and 1,3-Dithiolenium SaltsThe reaction of the 2-substituted 1,3-dithianes 1 (n = 3) and the analogous 1,3-dithiolanes 1 (n = 2) with sulfuryl chloride (2) with strict exclusion of moisture leads to the new 1,3-dithienium and 1,3-dithiolenium hydrogendichlorides 3, respectively. - Compounds 3 are extremely hygroscopic and hydrolyzable, can be, however, derivated with boron trifluoride diethyl etherate to the less sensitive tetrafluoroborates 5. Hydrolysis of 3a yields the two thiolesters 6a and 7a. The structure of 6a is confirmed by its synthesis from 1,3-propanedithiol (8) and benzoyl chloride (9).
    Notes: Umsetzung der 2-substituierten 1,3-Dithiane 1 (n = 3) bzw. der entsprechenden 1,3-Dithiolane 1 (n = 2) mit Sulfurylchlorid (2) unter strengem Feuchtigkeitsausschluß ergibt die neuen hydrolyseempfindlichen 1,3-Dithienium- bzw. 1,3-Dithiolenium-hydrogendichloride 3, die sich mit Bortrifluorid-Diethylether-Komplex in die weniger empfindlichen Tetrafluoroborate 5 überführen lassen. Hydrolyse von 3a ergibt die beiden Thiolester 6a und 7a. Konstitutionsbeweisend für 6a ist dessen Synthese aus 1,3-Propandithiol (8) und Benzoylchlorid (9).
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 3817-3824 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions with Indole Derivatives, XXXThe Stereoselective and Stereospecific Total Synthesis of Geissoschizine IsomersThe exocyclic, Z-configurated double bond of 19,20-isogeissoschizine (4a) can be introduced via a stereoselective and stereospecific Claisen rearrangement. The configuration of the products is proven by correlation to natural products.
    Notes: Über eine stereoselektive und stereospezifische Claisen-Umlagerung kann die exocyclische, Z-konfigurierte Doppelbindung des 19,20-Isogeissoschizins (4a) eingeführt werden. Die Konfiguration der Produkte ließ sich durch Korrelation mit Naturstoffen beweisen.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...