International Journal For Multidisciplinary Research

E-ISSN: 2582-2160   •   Impact Factor: 9.24

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Eco-Efficient Synthesis of 2-Mercaptobenzimidazole Using Functionalized Fe₃O₄ Nanoparticles as Magnetically Retrievable Catalysts

Author(s) Ashwini Kanade, Dr. Sandip M. Munde, Dr. S. Mahire, Naziya M.A. Rehman
Country India
Abstract In this study, magnetite nanoparticles (Fe₃O₄) were synthesized and surface-engineered to create an efficient and recyclable nanocatalyst for the eco-friendly preparation of 2-mercaptobenzimidazole, a pharmacologically important heterocyclic compound. Functionalization with silica, amine, and sulfonic acid groups enhanced the catalytic activity of Fe₃O₄ by improving substrate adsorption, providing tunable acidic/basic sites, and preventing particle agglomeration. The structural identity of the nanoparticles was confirmed through X-ray diffraction, which verified the formation of highly crystalline magnetite. The functionalized nanocatalysts promoted the cyclocondensation of o-phenylenediamine with carbon disulfide under mild ethanol–water conditions, leading to an efficient and greener synthetic pathway. Magnetic separation allowed rapid catalyst recovery and potential reusability, highlighting the system’s sustainability advantages. Overall, this work demonstrates a practical and environmentally compatible approach for heterocyclic synthesis using engineered Fe₃O₄ nanoparticles.
Keywords Fe₃O₄ Nanoparticles, Magnetic Nanocatalyst, Green Chemistry, 2-mercaptobenzimidazole, functionalization, Heterocyclic Synthesis, Sustainable Catalysis
Published In Conference / Special Issue (Volume 8 | Issue 1) - National Conference on Sciences, Pharmacy, Humanities & Commerce, Engineering for Research and Education (SPHERE-2025) (February 2026)
Published On 2026-02-01
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E-ISSN 2582-2160
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