Enantioselective Cascade Oxa-Michael-Michael Reactions of 2-Hydroxynitrostyrenes with Enones Using a Prolinol Thioether Catalyst
作者:Ai-Bao Xia、Chao Wu、Tao Wang、Yan-Peng Zhang、Xiao-Hua Du、Ai-Guo Zhong、Dan-Qian Xu、Zhen-Yuan Xu
DOI:10.1002/adsc.201301114
日期:2014.5.26
The efficient simultaneous activation of cyclohexenones or simple alkyl acyclic enones and 2‐hydroxynitrostyrenes was realized by using a prolinol thioether catalyst. Thus, a highly chemo‐, diastereo‐ and enantioselective synthesis of functionalized tetrahydroxanthenones and chromanes with up to three contiguous stereocenters was developed.
通过使用脯氨醇硫醚催化剂,可以有效地同时活化环己烯酮或简单的烷基无环烯酮和2-羟基硝基苯乙烯。因此,开发了高度化学,非对映和对映选择性合成功能化的四氢黄酮和苯并二氢吡喃并具有多达三个连续的立体中心的方法。