Synthesis of Tetrahydro-5<i>H</i>-indolo[2,3-<i>b</i>]quinolines through Copper-Catalyzed Cascade Reactions of Aza-<i>o</i>-quinone Methides with Indoles
作者:Dong-Liu Lu、Yi-Yun Yao、Yu-Feng Liang、Cui Liang、Lu Lei、Lu Ma、Dong-Liang Mo
DOI:10.1021/acs.joc.2c02140
日期:2023.1.6
of aza-o-quinone methides generated in situ from 2-(chloromethyl)anilines and indoles. Experimental results showed that the reaction underwent double 1,4-additions and sequential intramolecular cyclization. The present method features broad substrate scope, good functional group tolerance, and easy gram scalable preparation of indolo[2,3-b]quinolines.
通过铜( II ) 催化的氮杂-邻苯醌甲基化物的级联反应,从 2-(氯甲基) 苯胺和吲哚。实验结果表明,该反应经历了双 1,4-加成和顺序分子内环化。本方法具有广泛的底物范围、良好的官能团耐受性以及易于克级放大制备吲哚[2,3- b ]喹啉的特点。