作者:Zhusheng Yang、Fei Chen、Shuxin Zhang、Yanmei He、Nianfa Yang、Qing-Hua Fan
DOI:10.1021/acs.orglett.7b00419
日期:2017.3.17
first asymmetric hydrogenation of phenanthridines catalyzed by chiral cationic ruthenium diamine complexes has been developed with up to 92% ee and full conversions. The choice of the counteranion of the catalyst was found to be critical for achieving high enantioselectivity. In addition, the obtained 5,6-dihydrophenanthridine could be used as a chiral hydride donor for organocatalytic asymmetric transfer
已开发出手性阳离子钌二胺络合物催化的菲啶的首次不对称氢化,其ee高达92%,并且具有完全转化率。发现催化剂的抗衡阴离子的选择对于实现高对映选择性是至关重要的。另外,所得的5,6-二氢菲啶可用作有机催化不对称转移氢化的手性氢化物供体。