摘要
An enantioselective thiocyanation of oxindoles has been developed for the first time using a bifunctional cinchona-derived organo-catalyst and N-thiocyanatophthalimide as the electrophilic thiocyanation source in the presence of 2-naphthol as the additive. Various enantioenriched 3,3′-disubstituted oxindoles with SCN-containing quaternary carbon stereocenters were synthesized under mild conditions in high yields (up to 99%) and good enantioselectivities (up to 6:94 er).
源语言 | 英语 |
---|---|
页(从-至) | 7917-7926 |
页数 | 10 |
期刊 | Journal of Organic Chemistry |
卷 | 84 |
期 | 12 |
DOI | |
出版状态 | 已出版 - 21 6月 2019 |