The Use of Phosphite-Type Ligands in the Ir-Catalyzed Asymmetric Hydrogenation of Heterocyclic Compounds
作者:Sergey E. Lyubimov、Dmitry V. Ozolin、Pavel Yu Ivanov、Artem Melman、Valeriya S. Velezheva、Vadim A. Davankov
DOI:10.1002/chir.22267
日期:2014.1
series of chiral phosphite‐type ligands was tested in asymmetric Ir‐catalyzed hydrogenation of quinolines and 2,4,5,6‐tetrahydro‐1H‐pyrazino(3,2,1‐j,k)carbazole. Hydrogenation of quinaldine hydrochloride provided superior enantioselectivity up to 65% ee compared to quinaldine free base. The ligands were tested for the first time in the asymmetric Ir‐Ircatalyzed hydrogenation of 2,4,5,6‐tetrahydro‐1H‐pyrazino(3
一系列手性亚磷酸酯类的配体的在喹啉和2,4,5,6-四氢-1H-吡嗪并(3,2,1的不对称铱催化的氢化进行了测试Ĵ,ķ)咔唑。与喹诺定游离碱相比,盐酸喹诺定的氢化作用可提供高达65%ee的优异对映选择性。配体在2,4,5,6-四氢-1H-吡嗪并(3,2,1,j,k)咔唑的不对称Ir-Ir催化氢化中首次测试,得到抗抑郁药吡咯烷。手性26:56-60,2013。©2013 Wiley Periodicals,Inc.