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 Cascade Synthesis of 1<i>H</i>-Indolo[1,2-<i>c</i>]quinazoline Derivatives
作者:Hao Zhang、Yibao Jin、Hongxia Liu、Yuyang Jiang、Hua Fu
DOI:10.1002/ejoc.201200953
日期:2012.12
A simple, efficient and practical approach to 1H-indolo[1,2-c]quinazolinederivatives has been developed that uses inexpensive and readily-available catalyst and substrates. The method should provide a new strategy for N-fused heterocycles and will show wide application in organic chemistry and medicinal chemistry.
General and efficient copper-catalyzed aerobic oxidative synthesis of N-fused heterocycles using amino acids as the nitrogen source
作者:Qing Liu、Haijun Yang、Yuyang Jiang、Yufen Zhao、Hua Fu
DOI:10.1039/c3ra41644e
日期:——
efficient copper-catalyzed aerobic oxidative method for the synthesis of N-fused heterocycles has been developed by using readily available α-amino acids as the nitrogen source. The reactions underwent N-arylation, aerobic oxidative dehydrogenation, intramolecular cyclization and dissociation of formic acid. This method should provide a general and practical strategy for the construction of N-fused
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
Solvent-Dependent Copper-Catalyzed Indolyl C3-Oxygenation and N1-Cyclization Reactions: Selective Synthesis of 3<i>H</i>-Indol-3-ones and Indolo[1,2-<i>c</i>]quinazolines
作者:Shenghai Guo、Fang Wang、Li Tao、Xinying Zhang、Xuesen Fan
DOI:10.1021/acs.joc.8b00231
日期:2018.4.6
A simple and practical procedure for the selective preparation of 3H-indol-3-one and indolo[1,2-c]quinazolinederivatives through copper-catalyzed aerobic oxygenation and intramolecular cyclization reactions of 2-(2-amidoaryl)-1H-indoles in the presence of acid has been disclosed. Interestingly, the reaction outcomes are exclusively dependent on the reaction medium employed. With DMF as the solvent
通过铜催化的需氧氧化和2-(2-酰氨基芳基)-1 H的分子内环化反应选择性制备3 H-吲哚-3-一和吲哚并[1,2- c ]喹唑啉衍生物的简单实用方法已经公开了在酸存在下的-吲哚。有趣的是,反应结果完全取决于所采用的反应介质。以DMF为溶剂,吲哚底物的酰胺部分可作为助剂,使吲哚的氧化反应与空气中的分子氧作为氧化剂产生3 H-indol-3-one衍生物的选择性很高。另一方面,当反应在1,4-二恶烷中进行时,酰胺部分转变为参与分子内吲哚基N 1-环化,从而提供了吲哚[1,2- c ]喹唑啉作为主要产物。