Anhydrous MnBr2 and CoCl2 in conjunction with chiral ephedrine ligands effect substantial asymmetric induction in cycloadducts derived from methyl acrylate and imines of glycine methyl ester. CoCl2 is most effective and gives 96% e.e.
无
水MnBr 2和CoCl 2与手性
麻黄碱配体一起在衍生自
丙烯酸甲酯和甘
氨酸甲酯的
亚胺的环加合物中实现了基本的不对称诱导。CoCl 2最有效,可产生96%的ee