Nickel-Catalyzed anti-Markovnikov Hydrodifluoroalkylation of Unactivated Alkenes

Org Lett. 2022 Feb 4;24(4):1083-1087. doi: 10.1021/acs.orglett.1c04346. Epub 2022 Jan 21.

Abstract

An efficient Ni-catalyzed hydrodifluoroalkylation of unactivated alkenes with bromodifluoroacetate by using PhSiH3 as hydride source was developed. The transformation affords aliphatic difluorides with anti-Markovnikov regioselectivity. A wide range of highly remote alkenes, simple alkenes, drug molecules, commercially available CF2 precursors, and even nonfluorinated substrates are competent in this reaction under mild conditions, demonstrating the practicability of the strategy. Moreover, mechanistic studies indicated that the difluoroalkyl radical might be a key intermediate to this transformation.

Publication types

  • Research Support, Non-U.S. Gov't