Highly Efficient and Enantioselective Iridium-Catalyzed Asymmetric Hydrogenation of N-Arylimines
作者:Wei Li、Guohua Hou、Mingxin Chang、Xumu Zhang
DOI:10.1002/adsc.200900692
日期:2009.12
2′S)-2,2′-di-tert-butyl-2,2′,3,3′-tetrahydro-1H,1′H-1,1′-biisophosphindole] complex and BARF tetrakis[3,5-bis(trifluoromethyl)phenyl]borate} counterion effectively catalyzes the enantioselective hydrogenation of acyclic N-arylimines with high turnover numbers (up to 10,000 TON) and excellent enantioselectivities (up to 98% ee), achieving the practical synthesis of chiral secondary amines.
采用阳离子铱(A催化方法小号Ç,- [R p)-DuanPhos [(1 - [R,1' - [R,2S,2'S)-2,2'-二-叔丁基-2,2',3 ,3 ' -四氢- 1 ħ,1' ħ -1,1'- biisophosphindole]络合物和BARF 四[3,5-双(三氟甲基)苯基]硼酸盐}抗衡离子有效地催化的无环对映选择性氢化ñ -arylimines与高营业额(高达10,000吨)和出色的对映选择性(高达98%ee),实现了手性仲胺的实用合成。