An unprecedented reactivity of β‐iodovinyl sulfones in the presence of NaOAc is reported. A novel oxidative difunctionalization of (E)‐β‐iodovinyl sulfones with thiosulfonates in the presence of NaOAc in DMF has been developed to access a wide range of β‐keto thiosulfones in moderate to high yields.
conditions is disclosed. In this protocol, two new C–S bonds are constructed in a one-step reaction. A series of aliphatic and aromatic β-keto thiosulfones were obtained in moderate to good yields. This reaction probably proceeds through sulfur ylide-involved nucleophilicsubstitution of an ion pair within a solventcage.
β-ketosulfones and diselenides as the material source. This benign protocol permits access to a broad spectrum of α-aryl(alkyl) seleno-β-ketosulfones in high yields with outstanding functional group compatibility. Distinct advantages of this protocol over all previous methods encompass the utilization of base and air as an oxidant, room temperature, and enhanced green chemistry matrices.