Enantioselective Rhodium(I)-Catalyzed [3+2] Annulations of Aromatic Ketimines Induced by Directed CH Activations
作者:Duc N. Tran、Nicolai Cramer
DOI:10.1002/anie.201105766
日期:2011.11.18
selectivity: Highly substituted indenylamines can be obtained with high enantioselectivity by formal [3+2] additions of aryl ketimines with internal alkynes. These rhodium(I)‐catalyzed processes proceed by selective CH activation of one of the two arene substituents, regioselective carbometalation of the alkyne, and enantioselective addition across the imine.
三重选择性:可以通过将[3 + 2]芳基酮
亚胺与内部
炔烃正式加成,以高对映体选择性获得高度取代的
茚基胺。这些
铑(I)催化的过程是通过两个
芳烃取代基之一的选择性CH活化,
炔烃的区域选择性碳
金属化以及在整个
亚胺上的对映选择性加成而进行的。