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.