Synthesis of Benzoxazole and Benzimidazole Derivatives via Ligand-Free Copper(I)-Catalyzed Cross-Coupling Reaction of o-Halophenols or o-Haloanilines with Carbodiimides
作者:Guodong Shen、Weiliang Bao
DOI:10.1002/adsc.201000022
日期:——
A novel and efficient synthesis of benzoxazole and benzimidazole derivatives via a ligand‐free, copper(I)‐catalyzed, one‐pot cascade process has been developed. A variety of carbodiimides coupled with o‐halophenols or o‐haloanilines to give the products in moderate to excellent yields under the mild conditions.
通过无配体,铜(I)催化的一锅级联过程,开发了新颖,有效的苯并恶唑和苯并咪唑衍生物的合成方法。在温和的条件下,各种碳化二亚胺与邻卤代苯酚或邻卤代苯胺联用,可使产品具有中等至极好的收率。