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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 104 (1971), S. 1219-1233 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Aromatic Phosphines with Second Order Substituents, XI. NitrophenylphosphinesTriaryl- and alkyl-diarylphosphines with several m-nitro groups, unavailable by existing methods, are easily prepared by nitration with nitronium tetrafluoroborate, provided that oxidation at phosphorus is suppressed by means of a protecting group. Reaction of the new phosphines with sulfur does not reveal a + M effect of phosphine phosphorus.
    Notes: Die bislang unzugänglichen Triaryl- und Alkyl-diaryl-phosphine mit mehreren m-Nitrogruppen können auf einfache Weise durch Nitrierung mit Nitronium-tetrafluoroborat gewonnen werden, wenn der Phosphor durch eine Schutzgruppe vor Oxydation bewahrt wird. Die Reaktion der neuen Phosphine mit Schwefel läßt keinen + M Effekt des Phosphin-Phosphors erkennen.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
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