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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 108 (1975), S. 1783-1790 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Reaction of Diphosphanes with Carbon TetrachlorideTetraphenyl- and tetracyclohexyldiphosphane as well as the long chain tetraalkyldiphosphanes are easily cleaved by CCl4 leading to the chlorophosphines R2PCl (2a-d) and (trichloromethyl)- phosphines R2PCCl3 (3a-d). The diphosphane monoxide 4 and the diphosphacyclohexane 7 decompose in the same manner. The reaction is reversible at temperatures above 100°C. Tetramethyl- and tetraethyldiphosphane react in substance or in unpolar solvents to form the diphosphanium(1+) chlorides 9e and 10f; the careful hydrolysis of the latter gives the (chloromethyl)-diphosphanium(1+) chlorides 11 e and f.
    Notes: Tetraphenyl- und Tetracyclohexyldiphosphan sowie die längerkettigen Tetraalkyldiphosphane werden durch CCl4 glatt zu den Chlorphosphinen R2PCl (2a-d) und(Trichlormethy1)phosphinen( R2PCCl3 3a-d) gespalten. In gleicher Weise wird auch das Diphosphanmonoxid 4 sowie das Diphosphacyclohexan 7 abgebaut. Die Reaktion ist bei Temperaturen über 100°C reversibel. Tetramethyl- und Tetraäthyldiphosphan reagieren in Substanz oder unpolaren Lösungsmitteln zu den Diphosphanium(1 +)-chloriden 9e und 10f. Die vorsichtige Hydrolyse von 9e und 10f führt zu den (Chlormethyl)diphosphanium(1 +)-chloriden 11e und f.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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