@article{Bakavoli_Eshghi_Mohammadi_Moradi_Ebrahimi_2024, title={Synthesis of 2,4,5-triaryl-1H-imidazoles using a potent, green and reusable nano catalyst (FHS/SiO2)}, volume={5}, url={https://oiccpress.com/iranian-journal-of-catalysis/article/synthesis-of-245-triaryl-1h-imidazoles-using-a-potent-green-and-reusable-nano-catalyst-fhs-sio2/}, abstractNote={A simple, green and efficient method for synthesis of 2,4,5-trisubstituted imidazoles is described via three-component cyclocondensation of benzil or benzoin, aldehyde and ammonium acetate by using the nano SiO2-supported ferric hydrogen sulfate (FHS/SiO2), as a catalyst, under solvent-free conditions. The nano SiO2 support and catalyst were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and IR spectroscopy. In this project, the optimum conditions such as: reaction temperature, reaction time and amount of catalyst were investigated. The major advantages of the present method are high yields, shorter reaction times, easy work-up, purification of products by non-chromatographic method and the reusability of the catalyst.}, number={3}, journal={Iranian Journal of Catalysis}, publisher={OICC Press}, author={Bakavoli, Mehdi and Eshghi, Hossein and Mohammadi, Ali and Moradi, Hassanali and Ebrahimi, Javad}, year={2024}, month={Feb.}, keywords={Nano-catalyst, Heterogeneous catalyst, 5-Trisubstituted imidazoles, Solvent-free synthesis, Ferric hydrogen sulfate.} }