Asymmetric organocatalytic oxy-Michael addition of alcohols to α,β-unsaturated aldehydes
作者:Taichi Kano、Youhei Tanaka、Keiji Maruoka
DOI:10.1016/j.tet.2007.03.179
日期:2007.8
A 1,4-addition of alcohols to α,β-unsaturated aldehydes was found to be efficiently promoted by biphenyldiamine-based catalyst 3 without formation of the acetals. An asymmetric variant of this reaction has also been performed by designing a novel axially chiral organocatalyst (R)-10c.
发现联苯二胺基催化剂3可有效地促进醇向α,β-不饱和醛的1,4-加成反应, 而不会形成缩醛。还通过设计新型的轴向手性有机催化剂(R)-10c进行了该反应的不对称变化。