The reaction of PhI=NTs with sulfoxides in the presence of catalytic amounts of CuOTf afforded the corresponding N-tosylsulfoximines in high yield. The use of enantiomerically pure sulfoxides allowed stereoselective access to N-tosylsulfoximines with complete retention of configuration at sulfur. (C) 1998 Elsevier Science Ltd. All rights reserved.
JOHNSON C. R.; KIRCHHOFF R. A., J. ORG. CHEM. 1979, 44, NO 13, 2280