Nickel‐Catalyzed Coupling of Carbonyl Compounds and Alkynes or 1,3‐Dienes: An Efficient Method for the Preparation of Allylic, Homoallylic, and Bishomoallylic Alcohols

Abstract

Nickel-catalyzed multicomponent coupling of carbonyl compounds with alkynes or 1,3-dienes and organometallic reagents represents an efficient route to allylic, homoallylic, and bishomoallylic alcohols with good regio-, stereo-, and enantioselectivity. The reaction proceeds via the nickelacycle species I or I′ (see scheme), and not by the usual alkenylation, allylation, and homoallylation of carbonyl compounds.