Rhodium(III)-Catalyzed Regioselective C–H Alkenylation of Phenylphosphine Sulfides

Abstract

The regioselective alkenylation at the <i>ortho</i> position of phenylphosphine sulfides using alkenes proceeds efficiently in the presence of a cationic Cp*-rhodium­(III) catalyst and an appropriate oxidant. A similar rhodium catalyst also promotes the redox-neutral coupling of the phosphine sulfides with alkynes to afford <i>ortho</i>-alkenylated products