Rh(III)-Catalyzed [5 + 1] Annulation of Indole-enaminones with Diazo Compounds To Form Highly Functionalized Carbazoles
作者:Zhidong Jiang、Jianhui Zhou、Haoran Zhu、Hong Liu、Yu Zhou
DOI:10.1021/acs.orglett.1c01341
日期:2021.6.4
A novel Rh(III)-catalyzed C–H activation/annulation cascade of indole-enaminones with diazo compounds was reported to construct diversely functionalized carbazole frameworks. The most notable characteristic is that this transformation could smoothly furnish a novel [5 + 1] cyclization product with good to excellent yields (up to 95%), accompanied by the thorough removal of acetyl and N,N-dimethyl groups
据报道,一种新型 Rh(III) 催化的吲哚-烯胺酮与重氮化合物的 C-H 活化/环化级联可构建多种功能化的咔唑框架。最显着的特点是这种转化可以顺利地提供一种新的 [5 + 1] 环化产物,收率从高到高(高达 95%),同时彻底去除了两种底物的乙酰基和N , N-二甲基基团。目标产物,而不是通常预期的 [4 + 2] 环化产物。