Visible-light-mediated photocatalytic cross-coupling of acetenyl ketones with benzyl trifluoroborate

Org Biomol Chem. 2020 Feb 14;18(6):1073-1077. doi: 10.1039/c9ob02624j. Epub 2020 Jan 21.

Abstract

In this report, we describe a simple visible light-triggered Barbier-type reaction by employing acetenyl ketones with benzyl trifluoroborates. Through a radical-radical cross-coupling process, this photocatalytic protocol furnished a wide range of tertiary propargyl alcohols. Mechanistic investigation indicated that proton-coupled electron transfer (PCET) might be involved in the photochemical transformations.