A Unified Strategy for the Synthesis of Difluoromethyl- and Vinylfluoride-Containing Scaffolds

Org Lett. 2019 Oct 18;21(20):8205-8210. doi: 10.1021/acs.orglett.9b02887. Epub 2019 Sep 30.

Abstract

Here, we report a general method for the synthesis of quaternary and tertiary difluoromethylated compounds and their vinylfluoride analogues. The strategy, which relies on a two-step sequence featuring a C-selective electrophilic difluoromethylation and either a palladium-catalyzed decarboxylative protonation or a Krapcho decarboxylation, is practical, scalable, and high yielding. Considering the generality of the method and the attractive properties offered by the difluoromethyl group, this approach provides a valuable tool for late-stage functionalization and drug development.

Publication types

  • Research Support, Non-U.S. Gov't