A One‐Pot Copper‐Catalyzed 3‐Fold C–N Bond Coupling Strategy to the Synthesis of Substituted Benzimidazoles
作者:Parthasarathi Subramanian、Krishna P. Kaliappan
DOI:10.1002/ejoc.202000428
日期:2020.11.30
One‐pot reaction leading to direct access to biologically relevant heterocycles is highly recommended in chemical synthesis. One such standout method, manifold C–N bond formations route to the synthesis of benzimidazo[1,2‐a]benzimidazoles, is described. Our methodology involves a copper catalyzed intramolecular C–N coupling of N,N'‐bis(2‐bromophenyl)formimidamide to provide 1‐(2‐bromophenyl)‐1H‐benzimidazole
在化学合成中,强烈建议单锅反应导致直接进入生物学相关的杂环。描述了一种这样的出色方法,即形成苯并咪唑并[1,2- a ]苯并咪唑类化合物的多种C–N键形成途径。我们的方法涉及N,N'-双(2-溴苯基)甲酰亚胺酰胺的铜催化分子内C-N偶合,以提供1-(2-溴苯基)-1H-苯并咪唑与分子间偶合后与2-氨基吡啶和级联键2 CH氨化提供了一系列苯并咪唑[1,2- a ]苯并咪唑。