Heterocycles p. 1907 - 1911 (2008)
Update date:2022-08-29
Topics:
Liu, Zheng
Li, Haihong
Zhao, Qingjie
Shen, Jingshan
A facile one-pot process to prepare benzimidazole derivatives is described. Reductive cyclization of a serial of 2-nitroanilines with orthoesters in the presence of Pd/C in methanol at room temperature, which is promoted by a catalytic amount of acetic acid, affords the corresponding benzimidazole derivatives in high yields.
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Doi:10.1016/0022-328X(84)80340-X
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