Iranian chemical communication 2423-4958 8 1 2020 01 01 Synthesis of 2-aryl-1H-benzo[d]imidazole derivatives using nano montmorillonite clay as an efficient catalyst 42 48 6282 10.30473/icc.2019.45788.1538 EN Mohammad Alikarami Department of Chemistry, Ilam Branch, Islamic Azad University, Ilam, Iran Ahmad Nikseresht Department of Chemistry, Payame Noor University, P.O. BOX 19395-4697 Tehran, Iran Tayebeh Amoozadeh Department of Chemistry, Payame Noor University, P.O. BOX 19395-4697 Tehran, Iran Journal Article 2019 04 26 Benzimidazoles are among the most important nitrogen-containing heterocyclic compounds that have many pharmaceutical applications; including, antitumor, anticancer, anticorrosive, antibacterial, irritant and enzymatic interceptors. In this research, the synthesis of benzimidazoles using <em>o</em>-phenylenediamine and aldehyde derivatives in the presence of the nano montemurillonite in solvent-free and room temperature conditions has been investigated. All products with relatively good yields were identified by spectral and physical methods. https://icc.journals.pnu.ac.ir/article_6282_e9d17936cff9eda5a6f68a0c3536e76f.pdf