Enantioselective Diynylation of Cyclic N-Acyl Ketimines: Access to Chiral Trifluoromethylated Tertiary Carbinamines
作者:Fa-Guang Zhang、Hai Ma、Jing Nie、Yan Zheng、Qingzhi Gao、Jun-An Ma
DOI:10.1002/adsc.201100926
日期:2012.5.21
A novel enantioselective diynylation of cyclic N‐acyl trifluoromethylketimines with chloramphenicol‐amine derivatives as chiral additives has been successfully developed. A series of diynylated tertiary trifluoromethylcarbinamines were obtained in high yields with good to excellent enantioselectivities (with up to 99% ee).
已成功开发了一种新的对映选择性的环状N-酰基三氟甲基酮亚胺与氯霉素-胺衍生物作为手性添加剂的二炔基化反应。以高收率获得了一系列具有良好或优异对映选择性(高达99%ee)的二烷基化叔三氟甲基碳胺。