CO2-Promoted photoredox-catalyzed hydrosulfonylation of alkenes with sulfinates

Abstract

Herein, we report a CO₂-promoted strategy for the photoredox-catalyzed hydrosulfonylation of alkenes with sulfinates under metal-, acid-, and exogenous reagent-free conditions. This method was compatible with a wide range of functional groups, including complex drug derivatives, making it a versatile and straightforward approach for synthesizing valuable sulfonyl compounds. Notably, CO₂, which is an environmentally friendly additive, played an essential role in achieving the products, demonstrating a novel role of CO₂ in sulfonylation reactions.