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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1980 (1980), S. 1651-1658 
    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 Diazadiphosphetidines, II1,3,2λ5,4λ5-Diazadiphosphetidines are synthesized from PCl5 and aniline derivatives. They are partially or fully dissociated in solution to give substituted (phenylimido)phosphoric trichlorides. The dependence of the dissociation on the solvent, the temperature, and the concentration has been investigated. The reaction products of anilines and C6H5PCl4 or (C6H5)2PCl3 are exclusively monomers, i. e. they are substituted phenyl(phenylimido)phosphonic dichlorides 3 or diphenyl-(phenylimido)phosphinic chlorides 4, respectively.
    Notes: 1,3,2λ5,4λ5-Diazadiphosphetidine 1 werden aus PCl5 und Anilinderivaten synthetisiert. Sie liegen in Lösung teilweise oder ganz dissoziiert als substituierte (Phenylimido)phosphorsäuretrichloride 2 vor. Es wurde die Abhängigkeit der Dissoziation vom Lösungsmittel, der Temperatur und der Konzentration untersucht. Die Reaktionsprodukte aus Anilinen und C6H5PCl4 oder (C6H5)2PCl3 sind ausschließlich monomer, d. h. es handelt sich um substituierte Phenyl(phenylimido)phosphonsäuredichloride 3 bzw. Diphenyl(phenylimido)phosphinsäurechloride 4.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
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  • 2
    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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