Unsymmetrical Diarylketones from Electron-rich Heterocyclic Arenes
摘要:
AlCl3-mediated chlorocarbonylation of a first arene by oxalyl chloride followed by in situ Friedel-Crafts acylation of a second electron-rich arene expeditiously provides, in a one-pot procedure, either symmetrical or unsymmetrical benzophenones with yields ranging from 17-52%. Best results are obtained when the more activated substrate is used as the second arene. Another advantage is that the resultant benzophenone precipitates from the reaction mixture allowing facile workup.
AICI3-DMF Reagent in the Friedel-Crafts Reaction. Application to the Synthesis of Symmetrical Benzophenones Derivatives
作者:Huseyin Ucar、Kim Van derpoorten、Jacques H. Poupaert
DOI:10.3987/com-96-7716
日期:——
Synthesis of series of symmetrical benzophenone derivatives by C-alkylation reaction of 2(3H)-benzoxazolone and 2 (3H)-benzothiazolone with carbon tetrachloride in presence of AlCl3-DMF reagent is reported.