Highly Efficient Amine Organocatalysts Based on Bispidine for the Asymmetric Michael Addition of Ketones to Nitroolefins
作者:Zhigang Yang、Jie Liu、Xiaohua Liu、Zhen Wang、Xiaoming Feng、Zhishan Su、Changwei Hu
DOI:10.1002/adsc.200800341
日期:2008.9.5
highly diastereoselective and enantioselective Michael addition of cyclohexanone, acetone and other ketones to nitroolefins was developed by the use of an amine organocatalyst based on bispidine. Additionally, a theoretical study of transition structures revealed that this bispidine-based primary-secondary amine catalyst could serve through an enamine intermediate and H-bond interaction, which was
通过使用基于联吡啶的胺有机催化剂,开发了环己酮,丙酮和其他酮向硝基烯烃的高度非对映选择性和对映选择性迈克尔加成反应。另外,对过渡结构的理论研究表明,这种基于联吡啶的伯-仲胺催化剂可以通过烯胺中间体和氢键相互作用而起作用,这对于该反应的反应性和选择性很重要。