Thiophosphoramide catalyzed asymmetric Michael addition of cyclopentanone to chalcones
作者:Yunfeng Liu、Yang Wu、Aidang Lu、Youming Wang、Guiping Wu、Zhenghong Zhou、Chuchi Tang
DOI:10.1016/j.tetasy.2011.02.015
日期:2011.2
Thiophosphoramide 1b was found to be an effective bifunctional organocatalyst in the asymmetric Michael reaction of cyclopentanone to various chalcones, affording the corresponding adducts in satisfactory yields with moderate to excellent diastereo- (up to 90/10 dr) and enantioselectivities (up to 92% ee).
在环戊酮与各种查耳酮的不对称迈克尔反应中,硫代磷酰胺1b被发现是一种有效的双功能有机催化剂,以令人满意的产率提供了相应的加合物,具有中等至优异的非对映体(高达90/10 dr)和对映选择性(高达92%ee) )。