CCl4-Induced Synthesis of Phosphonothioates, Sulfoxides, and Sulfones from Sodium Sulfinates

An external reductant-free and acid-free synthesis of phosphonothioates from odorless sodium sulfinates induced by CCl₄ (1.0 equiv) under mild conditions has been achieved. This transformation provides an efficient synthetic approach to phosphonothioates in up to 98% yield with good functional group compatibility. In addition, an unexpected CCl₄-induced synthesis of sulfoxides and sulfones from sodium sulfinates using DMSO as the solvent has been developed.