Asymmetric Organocatalytic Tandem Reaction to Chiral Pyrimidinone Derivatives using Urea as Dinitrogen Source
作者:Zhao‐Quan He、Quan Zhou、Li Wu、Ying‐Chun Chen
DOI:10.1002/adsc.201000291
日期:2010.10.9
A facile method for the asymmetric synthesis of pyrimidinone derivatives was developed via an organocatalytic tandem aza-Michael addition–hemiaminal formation–dehydroxylation reaction, using N,N′-dialkyloxyurea as dinitrogen source (up to 97% ee). The transformations of hemiaminal intermediates to pyrimidinones with more complex structures have been also investigated.
通过使用N,N'-二烷氧基脲作为二氮源(最高ee达到EE),通过有机催化串联aza-Michael加成-血红素形成-脱羟基反应,开发了一种简便的嘧啶酮衍生物不对称合成方法。还研究了半胱氨酸中间体向结构更复杂的嘧啶酮的转化。