Sulfones from Mono- and Dithioacetals as Sulfur Chemist'S Tool

Abstract

Mainly applied syntheses of sulfones of O,S- and of S,S-acetals are briefly summarized; special types of these compounds represent the corresponding ketene acetals. Characteristic reactions all of these classes of compounds - including α sulfonyl carbanions as nucleophiles, α-substituted vinyl sulfones as Michael-acceptors or as cycloaddition partners, especially with regard to their synthon properties - are discussed.