Photoredox/Copper Dual-Catalyzed Four-Component Regioselective 1,2-Arylsulfonylation of Vinylarenes.

Sulfones and their derivatives serve as important structural units in organic chemistry. However, there is currently a lack of simple and feasible synthetic methods for their synthesis. In this wotk, a photoredox/copper dual catalysis that enabled 1,2-arylsulfonylation of vinylarenes to afford 2,2-diarylethyl sulfones has been reported for the first time. The developed protocol features high reaction regioselectivity and good reaction generality, affording a facile approach to 2,2-diarylethyl sulfones.