Stereoselective conjugate addition of organolithium and organocopper reagents to δ-oxygenated α,β-unsaturated carbonyl systems derived from glyceraldehyde acetonide
作者:John Leonard、Soad Mohialdin、Darrel Reed、Gary Ryan、Philip A. Swain
DOI:10.1016/0040-4020(95)00875-9
日期:1995.11
Addition reactions of organolithium and Organocopper reagents to δ-oxygenated α,β-unsaturated carbonyls, derived from glyceraldehyde acetonide, have been studied. In most cases there is a strong preference for conjugate addition of the organometallic reagent. Organocopper reagents react with anti stereoselectively, whereas most organolithiumreagents react with syn stereoselectivity, except for phenyllithium