Efficient one-pot synthesis of pyrazoles catalyzed by nano-crystalline solid acid catalyst

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  • Abbas Teimouri1,
  • Alireza Najafi Chermahini2,
  • Leila Ghorbanian3,
  1. Department of Chemistry, Payame Noor University, 19395-3697, Tehran, Iran.
  2. Department of Chemistry, Isfahan University of Technology, Isfahan, 841543111, Iran.
  3. Materials Engineering Department, Isfahan University of Technology, Isfahan, Iran.

Published in Issue 2024-02-03

How to Cite

Teimouri, A., Najafi Chermahini, A., & Ghorbanian, L. (2024). Efficient one-pot synthesis of pyrazoles catalyzed by nano-crystalline solid acid catalyst. Iranian Journal of Catalysis, 4(1). https://oiccpress.com/ijc/article/view/3784

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Abstract

An efficient and green protocol for the synthesis of pyrazoles derivatives by one-pot reaction of different 1,3-dicarbonyl compounds with hydrazines/hydrazides has been developed using nano-sulfated zirconia, nano-structured ZnO, nano-g-alumina and nano-ZSM-5 zeolites, as the catalyst. The optical properties of the nano-structured catalysts and organic molecules were studied. The advantages of methods are short reaction times and milder conditions, easy work-up and purification of products by non-chromatographic methods. The catalysts can be recovered for subsequent reactions and reused without any appreciable loss of efficiency.

Keywords

  • Green synthesis,
  • nano ZnO,
  • Nano-sulfated zirconia,
  • Nano-ZSM-5,
  • Nano--alumina,
  • Pyrazoles
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