Asymmetric [3+2] Cycloadditions of Allenoates and Dual Activated Olefins Catalyzed by Simple Bifunctional N-Acyl Aminophosphines
作者:Hua Xiao、Zhuo Chai、Chang-Wu Zheng、Ying-Quan Yang、Wen Liu、Jun-Kang Zhang、Gang Zhao
DOI:10.1002/anie.201000446
日期:2010.6.14
Bifunctional catalyst: Simple bifunctional N‐Acyl aminophosphines such as 1 were developed to catalyze the first asymmetric [3+2] cycloaddition between allenoates and dual activated olefins. The cycloaddition reactions afford multifunctional chiral cyclopentenes with exclusive regioselectivity, and good to excellent enantioselectivity and yields.
双官能催化剂:开发了简单的双官能N酰基氨基膦(如1)来催化脲基酸酯和双活化烯烃之间的首次不对称[3 + 2]环加成反应。环加成反应提供多功能的手性环戊烯,具有独特的区域选择性,并具有良好的对映选择性和良好的收率。