Issue 42, 2022

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

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.

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

Supplementary files

Article information

Article type
Paper
Submitted
12 août 2022
Accepted
15 sept. 2022
First published
28 sept. 2022
This article is Open Access
Creative Commons BY license

RSC Adv., 2022,12, 27555-27563

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

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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