Visible‐Light‐Initiated Uranyl‐Catalyzed Hydrosilylation and Hydrosulfonylation of Alkenes and Alkynes

Abstract

This study investigates the visible‐light‐initiated uranyl(VI)‐catalyzed activation of Si‐H bonds through direct hydrogen atom transfer, which facilitates the formation of silyl radicals from silanes. The silyl radical can abstract a chlorine atom from the sulfonyl chloride, leading to the generation of sulfonyl radicals. These silyl radicals and sulfonyl radicals could react with alkenes and alkynes, achieving the first example of uranyl‐catalyzed hydrosilylation and hydrosulfonylation of unsaturated C‐C bonds. This method features mild reaction conditions and a broad substrate scope, and exhibiting exceptional functional‐group tolerance. Consequently, it is suitable for the late‐stage functionalization of drug derivatives.