10.30495/ijc.2022.688895

Preparation, Characterization and Application of a Novel Organic-Inorganic Hybrid Magnetic Nanomaterial as a Highly Efficient Catalyst for the Synthesis of Bis-Coumarins

HTML PDF
  • Marziyeh Barzegar*1,
  • Abdolkarim Zare1,
  • Aysoda Ghobadpoor1,
  • Manije Dianat1,
  1. Department of Chemistry, Payame Noor University, PO Box 19395-3697, Tehran, Iran
Cover Image

Published in Issue 2022-02-05

How to Cite

Barzegar, M., Zare, A., Ghobadpoor, A., & Dianat, M. (2022). Preparation, Characterization and Application of a Novel Organic-Inorganic Hybrid Magnetic Nanomaterial as a Highly Efficient Catalyst for the Synthesis of Bis-Coumarins. Iranian Journal of Catalysis, 12(1). https://doi.org/10.30495/ijc.2022.688895
Crossref
Scopus
Google Scholar
Europe PMC

HTML views: 17

PDF views: 221

Abstract

A novel organic-inorganic hybrid magnetic nanomaterial, namely nano-[Fe3O4@SiO2@R-NMe2][FeCl4] (nano-[FSRN][FeCl4]) was prepared, and characterized by EDX, elemental mapping, FE-SEM, FT-IR, XRD, VSM, TG and DTG analyses. Then, it was applied as a highly efficient and magnetically recyclable catalyst for the solvent-free synthesis of bis-coumarins from 4-hydroxycoumarin (2 eq.) and arylaldehydes (1 eq.). NMe2 is a basic group, and FeCl4â is a Lewis acid; thus, nano-[FSRN][FeCl4] can act as a dual-functional catalyst; based on this and the literature, a plausible mechanism was proposed for the reaction. Highlights

(a) Preparation of a magnetic nanomaterial with acidic-basic property.

(b) Full characterization of the nanomaterial.

(c) Catalytic application of the nanomaterial for the synthesis of bis-coumarins.

(d) Synthesis of the products in high yields and short reaction times.

Keywords

  • Bis-coumarin,
  • Dual-functional catalyst,
  • Nano-[Fe3O4@SiO2@R-NMe2][FeCl4] (nano-[FSRN][FeCl4]),
  • Organic-inorganic hybrid magnetic nanomaterial,
  • Solvent-free
HTML PDF