diethylzinc mediates the conjugate reduction of alpha,beta-unsaturated amides to produce ethylzinc enolates that react with ketones in situ to produce tertiary alcohol-containing aldol products with up to >19:1 diastereoselectivity.
在
钴催化下,
二乙基锌介导α,β-不饱和酰胺的共轭还原,生成乙基
锌烯醇盐,后者与酮原位反应,生成含叔醇的非对映异构体产品,其最高对映选择性> 19:1。