Synthesis of Substituted Oxindoles from α-Chloroacetanilides via Palladium-Catalyzed C−H Functionalization
作者:Edward J. Hennessy、Stephen L. Buchwald
DOI:10.1021/ja037546g
日期:2003.10.1
A novel method for the synthesis of oxindoles is described. In the presence of catalytic palladium acetate and 2-(di-tert-butylphosphino)biphenyl, α-chloroacetanilides are converted to oxindoles in good to excellent yields with high functional group compatibility using triethylamine as a stoichiometric base. The cyclization is highly regioselective, obviating the need for prefunctionalized arenes.