The chiral sulfinyl group [RS(O)-] is an important functional group for the control of numerous asymmetric synthesis because it effectively transfers chirality to a wide range of centers. [ 1 1. (a) Carreña , MC Applications of sulfoxides to asymmetric synthesis of biologically active compounds. Chem. Rev. 1995, 95, 1717–1760, and references therein; (b) Anderson , KK In The Chemistry of Sulphones and Sulphoxides; S. Patai, Z. Rappoport, CJM Stirling (Eds.); ...