Dramatic solvent effects and stereospecificity in allylic sulphinate–sulphone rearrangements
Abstract
Dramatic solvent effects were observed in the thermolysis of allyl sulphinates; heating of chiral trans- and cis-allyl sulphinates (S)-(–)-(1a–g) in N,N-dimethylformamide at 90–120 °C provided chiral sulphones (2a–d) in good yields with very high stereospecificity.