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Eco-friendly synthesis of 2-substituted benzimidazoles catalyzed by FeCl3/Montmorillonite K-10

Guo-Feng Chen1, Qiao-Yu Jia, Xiu-Ping Zheng, Ya-Li Song, Ji-Tai Li

2-substituted benzimidazoles have been synthesized in a single pot from aromatic aldehydes and ophenylenediamine catalyzed by FeCl3/Montmorillonite K-10 in DMF at room temperature. The prominent features of this method include mild conditions, short reaction times, high yields and simple procedure.