Arylselenovinyl sulfones: II. Addition of benzeneselenols to aryl ethynyl sulfones

Abstract

Depending on the solvent nature, addition of benzeneselenols to aryl ethynyl sulfones leads to formation of a mixture of (E)- and (Z)-1-arylseleno-2-arylsulfonylethenes and 1-arylseleno-1-arylsulfonylethenes (in carbon tetrachloride and cyclohexane) or (Z)-1-arylseleno-2- arylsulfonylethenes as a single product (in alcohols).