Three-component indole synthesis using ortho-dihaloarenes
摘要:
A three-component synthesis of substituted indoles is accomplished starting from ortho-dihaloarenes through the use of a multicatalytic system consisting of an N-heterocyclic carbene palladium complex and CuI. The corresponding indole derivatives are obtained as single regioisomers in high yields of isolated product. (c) 2005 Elsevier Ltd. All rights reserved.
One-Pot Approach to 1,2-Disubstituted Indoles via Cu(II)-Catalyzed Coupling/Cyclization under Aerobic Conditions and Its Application for the Synthesis of Polycyclic Indoles
derivatives were efficiently and facilely synthesized from 2-alkynylanilines and boronic acids. 2-(2-Bromoaryl)-1-aryl-1H-indoles, which were selectively generated in one pot under the Cu catalysis, afforded the indolo[1,2-f]phenanthridines via Pd-catalyzed intramolecular direct C(sp2)–H arylation. The one-pot tandem approaches to the polycyclic indole derivatives were also successfully achieved.
通过Cu(II)催化的多米诺骨牌偶联/环化工艺已经开发出一种简单的1,2-二取代的吲哚组装体。在有氧条件下,可以从2-炔基苯胺和硼酸有效地合成各种1,2-二取代的吲哚衍生物。在铜催化下在一锅中选择性生成的2-(2-溴芳基)-1-芳基-1 H-吲哚通过Pd催化的分子内直接C(sp 2)提供吲哚[1,2- f ]菲啶)–芳基化。一锅串联方法也成功地实现了多环吲哚衍生物。
CNT-CuO catalyzed C–N bond formation for N-arylation of 2-phenylindoles
作者:Jeongah Lim、Ji Dang Kim、Hyun Chul Choi、Sunwoo Lee
DOI:10.1016/j.jorganchem.2019.120970
日期:2019.12
Carbon nanotube-copper oxide (CNT-CuO) nanocomposites were prepared by depositing CuO nanoparticles onto functionalized CNT surfaces. The structure and elemental content of CNT-CuO were characterized using transmission electron microscopy, X-ray diffraction, and Auger electron spectroscopy. The prepared CNT-CuO was subsequently employed as a catalyst for the coupling reaction of 2-phenylindole with aryl iodides to provide the desired N-aryl 2-phenylindoles in good yields. (C) 2019 Published by Elsevier B.V.
Copper-catalyzed N-arylation of 2-arylindoles with aryl halides
作者:Wei Liu、Li-Ya Han、Rui-Li Liu、Li-Ge Xu、Yan-Lan Bi
DOI:10.1016/j.cclet.2014.04.021
日期:2014.9
10 mol% Cul combined with the DMEDA ligand can efficiently catalyze the N-arylation of 2-arylindoles with aryl iodides and aryl bromides in good to excellent yields. The aryl halides bearing electron-rich or electron-deficient functional groups can be well tolerated under this mild reaction conditions. (C) 2014 Wei Liu. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.