Palladium catalyzed direct α-arylation of α,α-difluoroketones with aryl bromides
摘要:
The palladium-catalyzed direct alpha-arylations of alpha,alpha-difluoroketones with diverse aryl bromides have been developed by using rac-BINAP as ligand and Cs2CO3 as a mild base in xylene. This method provides an efficient and straightforward access to a variety of alpha-aryl-alpha,alpha-difluoroketones with broad substrate scope. (C) 2012 Elsevier B.V. All rights reserved.