An Efficient and Practical Process for the Synthesis of Benzimidazole and Benzothiazole Derivatives Catalyzed by Layered Zirconium Phosphate: Effect of Calcinations Temperature

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Abstract—

In this work, layered zirconium phosphates were synthesized via a reflux method and calcined at different temperatures (200, 400, and 600°C). The catalytic activity of the prepared solids was tested in the condensation of o-phenylenediamine and o-aminothiophenol with various aromatic aldehydes. The reaction conditions were optimized taking into account some parameters that control the reaction, namely the nature and volume of the solvent and the mass of the catalyst. The results showed that solid ZrP-200 (layered -zirconium phosphate calcined at 200°C) is the best performing catalyst for this reaction, because it has good catalytic activity and can be reused for at least five cycles with only a slight decrease in catalytic activity. In addition, a possible mechanism for the synthesis of benzimidazoles and benzothiazoles over ZrP-200 was proposed and discussed at the end of this study.

作者简介

Khadija Sadraoui

Laboratory of Advanced Materials and Process Engineering. Faculty of Science, University Ibn Tofaïl

编辑信件的主要联系方式.
Email: khadija.sadraoui@uit.ac.ma
Morocco, Kenitra

Touayba El Haj

Laboratory of Advanced Materials and Process Engineering. Faculty of Science, University Ibn Tofaïl

编辑信件的主要联系方式.
Email: Touayba.ahlelhaj@gmail.com
Morocco, Kenitra

Khalid El Mejdoubi

Laboratory of Advanced Materials and Process Engineering. Faculty of Science, University Ibn Tofaïl

Email: sallek.brahim@uit.ac.ma
Morocco, Kenitra

Zakaria Benzekri

Laboratory of Organic Chemistry, Catalysis and Environment, Department of Chemistry,
Faculty of Sciences, Ibn Tofail University; Laboratory of Heterocyclic Organic Chemistry, Faculty of Sciences, University Mohammed V

Email: sallek.brahim@uit.ac.ma
Morocco, Kenitra, P.O Box 133; Morocco, Rabat

Mounir El Hezzat

Laboratory of Advanced Materials and Process Engineering. Faculty of Science, University Ibn Tofaïl

Email: sallek.brahim@uit.ac.ma
Morocco, Kenitra

Said Boukhris

Laboratory of Organic Chemistry, Catalysis and Environment, Department of Chemistry,
Faculty of Sciences, Ibn Tofail University

Email: sallek.brahim@uit.ac.ma
Morocco, Kenitra, P.O Box 133

Brahim Sallek

Laboratory of Advanced Materials and Process Engineering. Faculty of Science, University Ibn Tofaïl; National School of Chemistry, Ibn Tofail University

编辑信件的主要联系方式.
Email: sallek.brahim@uit.ac.ma
Morocco, Kenitra; Morocco, Kenitra

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版权所有 © Khadija Sadraoui, Touayba Ahl El Haj, Khalid El Mejdoubi, Zakaria Benzekri, Mounir El Hezzat, Said Boukhris, Brahim Sallek, 2023