The First General, Highly Enantioselective Lewis Base Organo- catalyzed Hydrosilylation of Benzoxazinones and Quinoxalinones
作者:Zhou-Yang Xue、Yan Jiang、Xiao-Zhi Peng、Wei-Cheng Yuan、Xiao-Mei Zhang
DOI:10.1002/adsc.201000274
日期:2010.9.10
The first general, highly enantioselective hydrosilylation of benzoxazinones and quinoxalinones has been developed. The chiral Lewis base organocatalysts that are readily accessible from (1S,2R)‐ephedrine and (1R,2S)‐ephedrine promoted the title reaction to afford various chiral dihydrobenzoxazinones and dihydroquinoxalinones with good yields as well as good enantioselectivities.
已经开发出第一个一般的苯并恶嗪酮和喹喔啉酮的高度对映选择性加氢硅烷化反应。易于从(1 S,2 R)-麻黄碱和(1 R,2 S)-麻黄碱获得的手性Lewis碱有机催化剂促进了标题反应,从而提供了具有良好收率和良好对映选择性的各种手性二氢苯并恶嗪酮和二氢喹喔啉。