2-(2-异氰基苯基)-1 H-吲哚是一类同时具有芳族CH和吲哚N-H官能度的官能化异氰化物,首先用于选择性的酰亚胺化环化反应中。通过捕获亚氨基自由基或亚氨基钯选择性地获得具有生物重要性的6-芳基11 H-吲哚并[3,2- c ]喹啉和6-芳基吲哚并[1,2- c ]喹唑啉的支架。通过CH键和NH键的中间体。
Copper-Catalyzed Sequential Ullmann <i>N</i>-Arylation and Aerobic Oxidative C–H Amination: A Convenient Route to Indolo[1,2-<i>c</i>]quinazoline Derivatives
作者:Peng Sang、Yongju Xie、Jianwei Zou、Yuhong Zhang
DOI:10.1021/ol3016435
日期:2012.8.3
An efficient synthesis of indolo[1,2-c]quinazolinederivatives has been developed by copper-catalyzed sequential Ullmann N-arylation and aerobic oxidative C–H amination. The protocol uses readily available 2-(2-halophenyl)-1H-indoles and (aryl)methanamines as the starting materials to afford indolo[1,2-c]quinazolines, which are the core units of hinckdentine A.
通过铜催化的顺序Ullmann N-芳基化反应和好氧氧化CH-H胺化反应,已开发出吲哚[1,2- c ]喹唑啉衍生物的有效合成方法。该协议使用容易获得的2-(2-卤代苯基)-1 H-吲哚和(芳基)甲胺作为起始原料来提供吲哚并[1,2- c ]喹唑啉,它们是hinckdentine A的核心单元。
Rh(III)-Catalyzed C–H Amidation of 2-Arylindoles with Dioxazolones: A Route to Indolo[1,2-<i>c</i>]quinazolines
Rhodium(III)-catalyzedC-H amidation of 2-arylindoles with dioxazolones for the synthesis of indolo[1,2-c]quinazolines is reported. The reaction is compatible with a wide range of electronically diverse 2-arylindoles and dioxazolones, providing indolo[1,2-c]quinazolines in high to excellent yields. Most notably, the combination of this Rh-catalyzed C-H amidation and intramolecular N-H/N-C(O) cyclization