Esters as Acylating Reagent in a Friedel−Crafts Reaction: Indium Tribromide Catalyzed Acylation of Arenes Using Dimethylchlorosilane
作者:Yoshihiro Nishimoto、Srinivasarao Arulananda Babu、Makoto Yasuda、Akio Baba
DOI:10.1021/jo801914x
日期:2008.12.5
The Friedel-Craftsacylation of arenes with esters by dimethylchlorosilane and 10 mol % of indium tribromide has been achieved. The key intermediate RCOOSi(Cl)Me(2) is generated from alkoxy esters with the evolution of the corresponding alkanes. The scope of the alkoxy ester moiety was wide: tert-butyl, benzyl, allyl, and isopropyl esters were successful. In addition, we demonstrated the direct synthesis