Photosulfonylation of Aryl Halides with Sodium Sulfinates Catalyzed by Heterogeneous Copper Polymers

A general method for photosulfonylation of aryl halides with sodium sulfinates was successfully developed by using reusable copper‐containing hyper‐cross‐linked polymers (HCPs‐Cu). These heterogeneous catalysts were easily prepared from molecular BINAP/Cu(MeCN)₄PF₆ complex (BINAP‐Cu) with different amounts of benzene and formaldehyde dimethyl acetal (FDA) via direct knitting strategy, and the Cu center was uniformly dispersed in the matrices of HCPs‐Cu, featuring the same coordination environment to that of molecular BINAP‐Cu. This photosulfonylation system not only tolerates a wide range of substrates to furnish aryl sulfones, showing a potential in the synthesis of several drugs, but also highlights a moderate recyclability of 10 runs with minimal loss of catalytic activity.