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 arylbromides 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。