Diastereoselective synthesis of enantiopure acyclic β,β′-disubstituted vinylsulfoxides

Thermal elimination of sulfenic acid from enantiopure beta,beta'-disubstituted bis-sulfoxides allows the stereoselective synthesis of enantiopure acyclic beta,beta'-disubstituted vinylsulfoxides. This mild and stereospecific synthesis provides either (E) or (Z) vinylsulfoxides in high yields and is compatible with acid or base sensitive functional groups.