| abstract |
(57) [Summary] [Objective] Acylation of aromatic compounds is carried out using a recoverable Lewis acid catalyst. In the method for acylating an aromatic compound having at least one substitutable hydrogen in an aromatic ring by reacting with an acylating agent in the presence of a catalyst, a catalyst represented by the general formula RE (OSO 2 Rf) 3 (However, in the formula, RE: rare earth atom, Rf: perfluoroalkyl group or perfluoroalkoxy group) is a method for acylating an aromatic compound using a rare earth catalyst, and the rare earth catalyst is recovered after the reaction is completed. And a method of acylating an aromatic compound which is reused as a reaction catalyst. [Effect] According to the present invention, in the Friedel-Crafts reaction, it becomes possible to recover and reuse the catalyst, which has been difficult in the past, and has great industrial and practical value. |