Copper-Catalyzed Cascade Addition/Cyclization: An Efficient and Versatile Synthesis of <i>N</i>-Substituted 2-Heterobenzimidazoles
作者:Xin Lv、Weiliang Bao
DOI:10.1021/jo900743y
日期:2009.8.7
A novel and efficient one-pot synthesis of various N-substituted 2-heterobenzimidazoles has been developed. Through a Cu(I)-catalyzed cascade intermolecular addition/intramolecular C−Ncouplingprocess, a wide variety of 2-heterobenzimidazoles could be synthesized from o-haloarylcarbodiimides and N- or O-nucleophiles.