Nguyen Thi Ngoc Tran * , Lieu Ngoc Thien , Phan Thanh Son Nam , Dang Thi Hang and Dang Huynh Giao

* Corresponding authorNguyen Thi Ngoc Tran

Main Article Content


Iron-organic framework MOF-235 was synthesized from 1,4-benzenedicarboxylic acid and iron(III) chloride by a solvothermal method. Physical characterizations of the solid catalyst were achieved by using a variety of different techniques. The  Fe-MOF was used as an productive heterogeneous catalyst for the synthesis of benzimidazoles via oxidative condensation of primary amines with 1,2-diaminoarenes.  The MOF-235 was found to be more catalytically active for the oxidative condensation of primary amines with 1,2-diaminoarenes than other MOFs. Leaching tests verified that the cyclization of 1,2-phenylenediamine with benzylamine to generate 2-phenyl-1H-benzo[d]imidazole was only possible in the presence of the iron-based framework catalyst, thus indicating that the transformation progressed via truly heterogeneous catalysis.
Keywords: 1, 2-diaminoarenes, benzimidazoles, condensation, cyclization, MOF-235

Article Details


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