Phosphazene bases have been utilized as efficient organocatalysts to catalyze the double Michael additions of divinyl ketones with active methylenes to afford functionalized cyclohexanones in 36-91% yields with >25:1 diastereoselectivity.
磷腈碱已用作有效的有机催化剂,以催化二
乙烯基酮与活性亚甲基的双迈克尔加成反应,以36-91%的收率提供功能化的
环己酮,非对映选择性> 25:1。