Hao Wang, Mingyao Wu, Qian Yang, Wentao Wang, Yurong Tang, Yunfei Cai
A heterogeneous metallaphotocatalytic carbosulfonylation of vinyl amides has been developed using a recyclable bifunctional poly(heptazine imide) (PHI) photocatalyst bearing single-atom Ni sites (bpyNi SA -PHI). This robust protocol enables efficient and sustainable access to diverse vicinal aminosulfones at exceptionally low catalyst loadings (0.43–0.86 mol %) under mild conditions.