Photocatalytic Alkynylation of Hydrosilanes via Hydrogen Atom Transfer

J Org Chem. 2023 Aug 18;88(16):11675-11682. doi: 10.1021/acs.joc.3c00978. Epub 2023 Jul 31.

Abstract

Alkynylsilanes are significant structural units frequently used in synthetic chemistry, medicinal chemistry, functional materials, and life sciences. Herein, we report a method for using a hydrogen atom transfer (HAT) strategy in combination with visible-light-driven photocatalysis to achieve a direct coupling reaction between benzene sulfonyl acetylene and tertiary silanes, and a diverse alkynylation of hydrosilanes in the presence of reactive groups was achieved with this strategy. It is important to note that dihydroalkyl/aryl silanes are also suitable for the protocol of HAT photocatalytic of 4CzIPN and quinuclidine.