Synthesis of allyl and dienyl sulphones via iodosulphonylation of conjugated dienes
Abstract
The iodosulphonylation of conjugated dienes with sodium or mercury(II) toluene-p-sulphinate and iodine yields δ-iodoalkenyl sulphones stereoselectively. These compounds undergo stereospecific dehydrohalogenation to afford dienyl sulphones and nucleophilic substitution of the iodine atom to give δ-functionalized alkenyl sulphones.