Radical Allylation, Vinylation, Alkynylation, and Phenylation Reactions of α-Halo Carbonyl Compounds with Organoboron, Organogallium, and Organoindium Reagents
reactions of α-halo carbonyl compounds with alkenylindium proceeded via a radical process in the presence of triethylborane. Unactivated alkene moieties and styryl groups were introduced by this method. The carbon-carbon double bond geometry of the alkenylindiums was retained during the alkenylation. Preparation of an alkenylindium via a hydroindation of 1-alkyne and subsequent radical alkenylation established