Copper(I)-Catalyzed Intramolecular Direct C-Arylation of Azoles with Aryl Bromides
作者:Yuan Huang、Wei Chen、Dan Zhao、Chen Chen、Huiqing Yin、Likang Zheng、Ming Jin、Shiqing Han
DOI:10.1002/cjoc.201300399
日期:2013.8
heterofused compounds by copper(I)‐catalyzed intramolecular coupling of non‐activated aryl bromides with azoles is reported. With CuI as catalyst, 1,10‐phenanthroline as ligand, and K3PO4 as base, the reactions of 1‐(2‐bromobenzyl)‐1H‐imidazoles in DMF/o‐xylene (1:1, V:V) at 145°C afford the corresponding substituted 5H‐imidazo[2,1‐a]isoindoles in high yields via intramolecular C‐arylation.
据报导一种通过非活化的芳基溴化物与吡咯的铜(I)催化的分子内偶合获得5 H-咪唑并[2,1- a ]异吲哚杂稠化合物的简捷方法。以CuI为催化剂,1,10-菲咯啉为配体,K 3 PO 4为碱,1-(2-溴苄基)-1 H-咪唑在DMF /邻二甲苯中的反应(1:1,V:V)在145°C下通过分子内C-芳基化反应高收率提供相应的取代5 H-咪唑并[2,1- a ]异吲哚。