Rhodium-Catalyzed Highly Regioselective C-H Arylation of Imidazo[1,2-a]pyridines with Aryl Halides and Triflates
作者:Yi Liu、Lin He、Guoqiang Yin、Guojie Wu、Yingde Cui
DOI:10.5012/bkcs.2013.34.8.2340
日期:2013.8.20
Accepted May 13, 2013A convenient Rh-catalyzed C-H arylation of imidazo[1,2-a]pyridines with a variety of aryl halides or triflateshas been reported. This process afforded a range of biaryl compounds in excellent yields and showed highactivity and broad scope. Key Words : Rhodium catalyst, Aryl halides, Regioselective arylation, Imidazo[1,2- a]pyridines, TriflatesIntroductionHeteroaromatics bearing aryl-heteroaryl
E-mail: cuigdut@yahoo.com.cn 2013年4月8日接收,2013年5月13日接受 已有报道一种方便的Rh催化CH芳基化咪唑并[1,2-a]吡啶与多种芳基卤化物或三氟甲磺酸酯。该方法以优异的收率提供了一系列联芳基化合物,并显示出高活性和广泛的适用范围。关键词:铑催化剂,芳基卤化物,区域选择性芳基化,咪唑并[1,2-a]吡啶,三氟甲磺酸盐简介带有芳基-杂芳基键的杂芳烃一直是生物化合物、天然产物、材料化学、配体中最重要的结构单元之一。