Copper-Catalyzed (4+1) Cascade Annulation of Terminal Alkynes with 2-(Tosylmethyl)anilines: Synthesis of 2,3-Disubstituted Indoles
作者:Xu Yan、Chun-Fang Liu、Xian-Tao An、Xiao-Min Ge、Qing Zhang、Lin-Han Pang、Xu Bao、Chun-An Fan
DOI:10.1021/acs.orglett.1c03402
日期:2021.11.19
alkynes as one-carbon synthons with 2-(tosylmethyl)anilines has been developed for the expeditious synthesis of 2,3-disubstituted indoles, in which in situ generations of aza-o-quinone methides and alkynyl-copper(I) species are involved. This annulation provides an effective method for the assembly of synthetically and structurally interesting 2,3-disubstituted indoles.
已经开发了一种基于 Cu 催化 (4+1) 级联环化末端炔作为单碳合成子与 2-(甲苯磺酰甲基)苯胺的新策略,用于快速合成 2,3-二取代吲哚,其中原位生成的氮杂Ó -quinone甲基化物和炔基-铜(I)类的参与。这种环化为合成和结构上有趣的 2,3-二取代吲哚的组装提供了一种有效的方法。