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  • Inorganic Chemistry  (1)
  • 1980-1984  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 116 (1983), S. 1468-1478 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Four- and Five-membered Phosphorus Heterocycles, 57. Phosphazene/Azaphosphetidine Tautomerism of 3,3′-Spirobi[ 1,2,4,3λ5-triazaphosphole] DerivativesDifferent routes lead from N1-methylbenzamidrazone (1) and PCl5 to the spirobi[triazaphosphole] 5. Its halogeno-phosphino, -phosphoryl, and -phosphonio derivatives 7 and 9 are prepared by substitution. By an intramolecular addition to the phosphazene bond they isomerize (partly within an observable equilibrium) to the tricyclic halogeno-diazadiphospheto-bis(triazaphospholes) 8, 10, 11. From chloro derivative 8i the corresponding amines, hydrazines, and hydrazones 13 are obtained. Their bridgehead phosphorus is five-fold N-coordinated (in most other cases pentaaminophosphoranes are unstable).
    Notes: Aus N1-Methylbenzamidrazon (1) und PCl5 entsteht auf verschiedenen Wegen das Spirobi[triazaphosphol] 5. Durch Substitution daraus dargestellte Halogen-phosphino-, -phosphoryl- und -phosphonio-Derivate 7 und 9 gehen (z. T. im Rahmen eines beobachtbaren Gleichgewichts) durch intramolekulare Addition an die Phosphazenbindung in die tricyclischen Halogen-diazadiphospheto-bis(triazaphosphole) 8, 10, 11 über. Die Chlorverbindung 8i läßt sich in die entsprechenden Amine, Hydrazine und Hydrazone 13 überführen, in denen der Brückenkopf-Phosphor fünffach N-koordiniert ist.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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