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Synthesis, Characterization of Highly Efficient SO42-/ CeO2–ZrO2 Solid Acid Catalyst and Activity Studies of 2, 4, 5-triaryl imidazoles

Author Affiliations

  • 1Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad Sub-Campus, Osmanabad, MS, INDIA

Res.J.chem.sci., Volume 4, Issue (7), Pages 18-23, July,18 (2014)


SO/ CeO2ZrO2 solid acid catalyst has been synthesized by coprecipitation followed by impregnation method. Zirconyl oxychloride and ceric ammonium nitrate is used as zirconia and ceria precursor respectively, ammonia is used as precipitating agent and chlorosulfonic acid is used as sulphating agent. The structure characterization of this solid acid catalyst has been studied by FT-IR, XRD, and TGA-DSC. Synthesized solid acid catalyst is employ for preparation of 2,4,5-trisubstituted imidazoles via three-component reactions of benzoin, aldehydes and ammonium acetate under mild conditions.The desired products were formed in high to moderate yields.


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