Hydrosulfonylation of Unactivated Alkenes by Visible Light Photoredox Catalysis

Abstract

The anti-Markovnikov hydrosulfonylation of unactivated alkenes with sodium sulfinates was realized via [Ir(dF(CF₃)ppy)₂(dtbbpy)]PF₆-mediated visible light photoredox catalysis. The presence of an acid such as acetic acid is essential for the reaction to take place. A variety of unactivated alkenes can be transformed into sulfones with good yield and high regioselectivity using this reaction, which is proposed to proceed by a radical mechanism.