Asymmetric Michael Addition of <i>N</i>-<i>tert</i>-Butanesulfinyl Imidate with α,β-Unsaturated Diesters: Scope and Application to the Synthesis of Indanone Derivatives
作者:Jinfang Wang、Yu Zhou、Lei Zhang、Zeng Li、Xianjie Chen、Hong Liu
DOI:10.1021/ol400277h
日期:2013.4.5
An additive-free and highly diastereoselective Michael addition reaction of an N-tert-butanesulfinyl imidate to α,β-unsaturated diesters has been developed using LDA as a base with good to excellent yields. The utility of this chemistry is further demonstrated by the asymmetric synthesis of 3-substituted indanone derivatives 8a, 8d, 8e, and 8i with high enantiomeric excess, which are potential building
使用LDA作为碱,已经开发出了N-叔丁亚磺酰亚胺基亚氨酸酯与α,β-不饱和二酯的无添加剂和高度非对映选择性的迈克尔加成反应,具有良好或优异的收率。该化学的实用性通过具有高对映体过量的3-取代的茚满酮衍生物8a,8d,8e和8i的不对称合成进一步证明,它们是制备生物活性铅化合物的潜在组成部分。