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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 107 (1974), S. 2658-2670 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Reactions of Silylated IminodiphosphanesSilylated iminodiphosphanes R2[(CH3)3SiN=]P—PR2 2a-d) and R2[(CH3)3SiN=]P—PR2[=NSi(CH3)3] (3a-d) are obtained by reaction of the corresponding diphosphanes with silyl azide. The monoiminodiphosphanes react with sulfur to form the monosulfides 4a-c; hydrolysis of the latter gives the ammonium salts of the dialkylphosphinic acids 5a-c and dialkylphosphine sulfides 6a-c. The hydrolysis of 3a-c yields mainly the decomposition products 5a-c; diphosphane dioxides are shown by mass spectrometric methods to be present only in small amounts. The P-P bond of the iminodiphosphanes is also cleaved by treatment with hydrogen chloride. The identification and characterisation of the resulting compounds was generally effected by 1H and 31P n.m.r. spectroscopic methods.
    Notes: Silylierte Iminodiphosphane R2[(CH3)3SiN =]P -PR2( 2a-d) und R2[(CH3)3SiN =]P-PR2-[=NSi(CH3)3] (3a-d) werden durch Umsetzung der betreffenden Diphosphane mit trimethylsilylazid dargestellt. Die Monoiminodiphosphane reagieren mit Schwefel zu den Monosulfiden 4a-c, bei deren Hyrolyse Ammoniumsalze der Dialkylphosphinsäuren 5a-c und Dialkylphosphinsulfide 6a-c entstehen. Die Hydrolyse von 3a-c liefert hauptsächlich die Spaltprodukte 5a-c, Diphosphandioxide können dabei nur in geringer Menge Massenspektrometrisch nachgewiesen werden. Durch Chlorwasserstoff wird die P—P-Bindung der Iminodiphosphane ebenfalls gespalten. Die Identifizierung und Charakterisierung der dargestellten Verbindungen erfolgte vor allem durch 1H-und 31P-NMR-spektroskopie.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
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