Asymmetric hydrogenolysis of racemic tertiary alcohols, 3-substituted 3-hydroxyisoindolin-1-ones, was developed using chiral phosphoric acid as catalyst and a Hantzsch ester as the hydrogen source with up to 95% ee. The reaction process of this asymmetric transfer hydrogenation may occur directly through the acyliminium ion intermediate.
使用手性
磷酸作为催化剂和 Hantzsch 酯作为氢源开发了外消旋叔醇(3-取代的
3-羟基异吲哚啉-1-酮)的不对称氢解,其 ee 高达 95%。这种不对称转移氢化的反应过程可以直接通过
酰亚胺离子中间体发生。