The asymmetric hydrogenation of the phenylhydrazone of methyl N-(3,3-dimethyl-2-oxobutanoyl)-l-valinate was investigated using palladium catalysts. The configuration of the newly formed t-leucine moiety was found to be l.
使用
钯催化剂研究了N-(3,3-二甲基-2-氧代丁酰)-l-缬
氨酸的苯基
肼酮的不对称氢化反应。新形成的t-亮
氨酸部分的构型被发现是l型。