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    ISSN: 0044-2313
    Keywords: Catalysis ; Diphosphanes ; 1,2-di-t-butyl-1,2-dimethyldiphosphane ; 1,2-di-t-butyl-1-chloro-2-methyl-diphosphane ; 1,2-di-t-butyl-1,2-dichloro-diphosphane ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The CuCl-catalyzed Reaction of Trimethylsilyl(t-butyl)chlorophosphane with Dimethylzirconocene: An Example for Tandem Catalysist-BuP(SiMe3)Cl was prepared from t-BuP(SiMe3)2 and hexachloroethane and reacted in situ with Cp2ZrMe2 in the presence of catalytic amounts of copper(I) chloride yielding t-Bu(Me)P—P(Cl)t-Bu (1) (2 : 1 reaction) or t-Bu(Me)P—P · (Me)t-Bu (2) (1 : 1 reaction) and Cp2ZrCl(Me). To understand the course of reaction, the reaction of dimethylzirconocene with CuCl and the decomposition of t-BuP(SiMe3)Cl in the presence of CuCl and tetrachloroethene were studied. The results suggest that CuCl reacts with t-BuP(SiMe3)Cl in the presence of C2Cl4 to give t-Bu(Cl)P—P(Cl)t-Bu (3); simultaneously, CuCl reacts with Cp2ZrMe2 with formation of methylcopper, which reacts with 3 to give 1 or 2, respectively.
    Notes: In situ aus t-BuP(SiMe3)2 und Hexachlorethan erzeugtes t-BuP(SiMe3)Cl reagiert mit Cp2ZrMe2 in Gegenwart katalytischer Mengen an Kupfer(I)-chlorid unter Bildung von t-Bu(Me)P—P(Cl)t-Bu (1) (2 : 1-Reaktion) oder t-Bu(Me)P—P(Me)t-Bu (2) (1 : 1-Reaktion) und Cp2ZrCl(Me). Zur Interpretation des Reaktionsverlaufs wurden die Umsetzung von Dimethylzirconocen mit CuCl sowie die Zersetzung von t-BuP(SiMe3)Cl im Gegenwart von CuCl und Tetrachlorethen untersucht. Demnach reagiert CuCl mit t-BuP(SiMe3)Cl in Gegenwart von C2Cl4 zu t-Bu(Cl)P—P(Cl)t-Bu (3); gleichzeitig bildet CuCl mit Cp2ZrMe2 Methyl-Kupfer, das mit 3 je nach Stöchiometrie zu 1 oder 2 reagiert.
    Type of Medium: Electronic Resource
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