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ORIGINAL RESEARCH article

Front. Chem.
Sec. Organic Chemistry
Volume 12 - 2024 | doi: 10.3389/fchem.2024.1434488
This article is part of the Research Topic Green Processes for the Synthesis of Heterocycles View all 5 articles

Synthesis of cobalt-ferrite and zinc oxide metal nanoparticles based-bentonite using SDS and their investigation as catalysts in synthesis of benzylbarbiturocoumarins

Provisionally accepted
Pegah Baminejhad Pegah Baminejhad Enayatollah Sheikhhosseini Enayatollah Sheikhhosseini *Mahdieh Yahyazadehfar Mahdieh Yahyazadehfar
  • Islamic Azad University Kerman, Kerman, Kerman, Iran

The final, formatted version of the article will be published soon.

    In this research, a suitable and efficient CoFe2O4@ZnO@Bentonite nano-catalyst was designed and synthesized by using zinc oxide (ZnO) and cobalt ferrite (CoFe2O4) nanoparticles and bentonite by microwave irradiation. Characteristics of the synthesized nanocomposite were investigated by Fourier transform infrared (FT-IR), scanning electron microscope (SEM), energy dispersive X-ray (EDX), transmission electron microscope (TEM), X-ray diffraction (XRD), Bruner-Emmett-Teller (BET) and vibrating sample magnetometer (VSM) techniques. The produced catalyst was effectively employed as a supported solid acid catalyst in mildly agitated three-component reactions involving aromatic aldehydes, 4-hydroxycoumarin, and 1,3-dimethyl-barbituric acid in a single pot to produce benzylbarbiturocoumarins. Starting materials were condensed via three C-C bond formation by CoFe2O4@ZnO@Bentonite as an efficient, recyclable, and environmentally safe nanocatalyst to obtain target products. The advantages of this method include using a natural substrate, small amounts of catalyst, aqueous media, performing reactions at ambient temperature, simple separation and purification of products, and good yields with short reaction times.

    Keywords: CoFe2O4@ZnO@Bentonite 1, bentonite 2, reusable catalyst 3, multi-component reaction 4, green synthesis 5, benzylbarbiturocoumarins 6

    Received: 17 May 2024; Accepted: 30 Jul 2024.

    Copyright: © 2024 Baminejhad, Sheikhhosseini and Yahyazadehfar. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Enayatollah Sheikhhosseini, Islamic Azad University Kerman, Kerman, Kerman, Iran

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.