Chiral 1,2,3,4-tetrahydroquinolinyl-oxazoline ligands for Ru-catalyzed asymmetric transfer hydrogenation of ketones
作者:Yi-Bo Zhou、Fang-Yi Tang、Hua-Dong Xu、Xin-Yan Wu、Jun-An Ma、Qi-Lin Zhou
DOI:10.1016/s0957-4166(02)00139-8
日期:2002.4
Chiral 1,2,3,4-tetrahydroquinolinyl-oxazoline compounds have been synthesized from 8-quinolinecarboxylic acid and enantiomerically pure amino alcohols using a convenient procedure. Asymmetric transfer hydrogenation of aryl ketones with the catalyst prepared in situ from [Ru(p-cymene)Cl2]2 and ligands 2 in 2-propanol in the presence of KOH, afforded the corresponding secondary alcohols in reasonable
使用方便的方法,由8-喹啉羧酸和对映体纯的氨基醇合成了手性1,2,3,4-四氢喹啉基-恶唑啉化合物。在KOH存在下,用[Ru(对-cymene)Cl 2 ] 2和配体2在2-丙醇中原位制备的催化剂对芳基酮进行不对称转移氢化,以合理的收率得到了相应的仲醇,收率高达83% ee