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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 114 (1981), S. 926-936 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Acylation of Benzenes with Carboxylic Dihalophosphoric AnhydridesAryl ketones 4,9 are formed in good yields without the addition of Friedel-Crafts catalysts from activated arenes (e. g. alkylbenzenes, anisole) and aryl- and alkylcarboxylic dihalophosphoric anhydrides 1,2 and 7,8 respectively. The anhydrides 7,8 may be prepared in situ by mixing the respective carboxylic and dihalophosphoric anhydrides. This procedure is especially advantageous in care of the less stable compounds.
    Notes: Aryl-und Alkylcarbonsäure-dihalogenphosphorsäure-anhydride 1,2 bzw. 7,8 reagieren mit aktivierten Aromaten (Alkylbenzolen, Anisol) auch ohne Zugabe von Friedel-Crafts-Katalysatoren in guten Ausbeuten zu Arylketonen 4,9. Die gemischten Anhydride 7,8 können auch in situ durch Mischen der Carbonsäureanhydride mit den Dihalogenphosphorsäure-anhydriden hergestellt und umgesetzt werden, was insbesondere für die weniger stabilen gemischten Anhydride von Nutzen ist.
    Additional Material: 7 Tab.
    Type of Medium: Electronic Resource
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