Cobalt-catalyzed difluoroalkylation of tertiary aryl ketones for facile synthesis of quaternary alkyl difluorides

摘要

The catalytic C(sp3)-CF2 bond formation is of high interest in drug design and discovery. Here, the authors report a cobalt-catalyzed difluoroalkylation of tertiary α-C-H bonds of aryl ketones for facile synthesis of quaternary alkyl difluorides and show the late-stage functionalization of marketed drugs.