Lewis acid-catalyzed intramolecular asymmetric ene reactions of chiral vinyl sulfoxide
作者:Kunio Hiroi、Masayuki Umemura
DOI:10.1016/s0040-4039(00)92084-7
日期:1992.6
sulfoxide served as an efficient chiral enophile in a Lewis acid-catalyzed intramolecular ene ractions. Use of diethylaluminum chloride as a catalyst provided extremely high stereoselectivity in this ene reaction. Based on the stereochemical results obtained, a mechanistic pathway for this asymmetric induction is presented.
手性α-氰基乙烯基亚砜在路易斯酸催化的分子内烯作用中作为有效的手性亲烯剂。在该烯反应中,使用氯化二乙基铝作为催化剂提供了极高的立体选择性。基于获得的立体化学结果,提出了这种不对称诱导的机理途径。