Photocatalyzed Radical Relayed Regio- and Stereoselective Trifluoromethylthiolation-Boration

Org Lett. 2021 Jul 16;23(14):5410-5414. doi: 10.1021/acs.orglett.1c01737. Epub 2021 Jun 28.

Abstract

Vinylboronates and alkylboronates are key components in variegated transformations in all aspects of chemical science. This work describes a sequential radical difunctionalization strategy for the construction of fluorine-containing vinylboronates and alkylboronates with the integrated redox-active reagent N-trifluoromethylthiophthalimide. This multifunctional N-S precursor offers a scalable and practical protocol for the trifluoromethylthiolation-borylation of unsaturated hydrocarbons in a highly regio- and stereoselective fashion, which can be further converted into valuable synthons via boryl migration.