One-pot synthesis of chromenes in the presence of nano-cellulose/Ti(IV)/Fe3O4 as natural-based magnetic nano-catalysts under solvent free conditions

Raziyeh Gholami; Abdolhamid Bamoniri; Bi Bi Fatemeh Mirjalili

doi:10.1039/D2RA05057A

One-pot synthesis of chromenes in the presence of nano-cellulose/Ti^(IV)/Fe₃O₄ as natural-based magnetic nano-catalysts under solvent free conditions†

Raziyeh Gholami,^a Abdolhamid Bamoniri

*^a and Bi Bi Fatemeh Mirjalili

Author affiliations

* Corresponding authors

^a Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, I. R. Iran
E-mail: bamoniri@kashanu.ac.ir
Tel: +98-31-55912384

^b Department of Chemistry, Faculty of Science, Yazd University, Yazd, I. R. Iran

Abstract

In this study, the preparation of magnetic catalysts of titanium tetrachloride stabilized on nano-cellulose named cellulose/Ti^(IV)/Fe₃O₄ was investigated. Various methods such as XRD, SEM, FT-IR, BET, EDX, TEM, TGA and VSM were used to characterize the catalysts. Then, the identified catalysts were used for the synthesis of various chromene skeletons via reaction of malononitrile, aldehyde and dimedone, 4-hydroxycoumarine or 2-naphthole at 70 °C under solvent free conditions. The spectroscopic methods used to determine the structure of the products include ¹³C NMR, ¹H NMR and FT-IR.

This article is part of the themed collection: 2022 RSC Advances Popular Advances Collection

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Article information

DOI: https://doi.org/10.1039/D2RA05057A
Article type: Paper
Submitted: 12 Aug 2022
Accepted: 15 Sep 2022
First published: 28 Sep 2022
This article is Open Access

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RSC Adv., 2022,12, 27555-27563

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One-pot synthesis of chromenes in the presence of nano-cellulose/Ti^(IV)/Fe₃O₄ as natural-based magnetic nano-catalysts under solvent free conditions

R. Gholami, A. Bamoniri and B. B. Fatemeh Mirjalili, RSC Adv., 2022, 12, 27555 DOI: 10.1039/D2RA05057A

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