Highly stereoselective three-component reactions of phenylselenomagnesium bromide, acetylenic sulfones, and saturated aldehydes/ketones or alpha,beta-unsaturated enals or enones

Research has been conducted on beta-phenylseleno-alpha-tolylsulfonyl-substituted alkenes. The synthesis of these compounds carried out via the three-component conjugated-nucleophilic addition of acetylenic sulfones, phenylselenomagnesium bromide and carbonyl compounds is described.