Ionic Hydrosulfonylation of Alkenes with Sodium Sulfinates for Highly Efficient Synthesis of Benzyl Sulfones

An efficient method for the ionic hydrosulfonylation of alkenes lacking electron‐withdrawing groups has been developed. This transformation proceeds smoothly to afford benzyl sulfone products, featuring easy operation, a broad substrate scope, good atomic economy, the use of sodium sulfinates as a safe sulfone source, and water/alcohol as green solvents. Furthermore, our strategy enables the synthesis of tertiary carbon sulfone compounds.