Three-component coupling of acetylenic sulfones, Grignard reagents and α, β-unsaturated carbonyls: A convenient synthesis of diallylic alcohols

A convenient synthesis of diversely substituted diallylic alcohols is developed via Cu-mediated three-component coupling reaction of acetylenic sulfones, Grignard reagents and α, β-unsaturated carbonyls. Polysubstituted diallylic alcohols containing a sulfonyl group could be obtained in up to 85% yield.