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  • 1975-1979  (1)
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    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1979 (1979), S. 1125-1129 
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and NMR Spectra of DiazadiphosphetidinesThe 1,3-diaza-2,4-diphosphetidines 4a-e are synthesized from tris(dialkylamino)phosphanes and aniline derivatives. Diphenyldiazomethane oxidizes a phosphorus atom in 4a to yield 5. The coupling constants JPf in 4 and 5 strongly suggest that P-F coupling occurs mainly through-space.
    Notes: Die 1,3-Diaza-2,4-diphosphetidine 4a -e werden durch Transaminierung aus Tris(dialkyl-amino)phosphanen und Anilinderivaten synthetisiert. Diphenyldiazomethan oxidiert in 4a ein Phosphoratom und führt zu 5. Die Kopplungskonstanten JPF legen nahe, daß die P - F-Kopplung hauptsächlich nach einem'through-space”-Mechanismus erfolgt.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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