Issue 12, 2019

A novel protocol for the synthesis of pyrano[2,3-h]coumarins in the presence of Fe3O4@SiO2@(CH2)3OCO2Na as a magnetically heterogeneous catalyst

Abstract

In this study, sodium carbonate functionalized silica coated-iron oxide nanoparticles (Fe3O4@SiO2@(CH2)3OCO2Na) were synthesized, characterized and applied as a heterogeneous basic nanocatalyst for the synthesis of pyrano[2,3-h]coumarins. The structure of this nanocatalyst was investigated using FT-IR, field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDS) techniques. Fe3O4@SiO2@(CH2)3OCO2Na was used as a catalyst in the synthesis of pyrano[2,3-h]coumarin derivatives via a simple three-component reaction between 5,7-dihydroxy-4-methylcoumarin, dialkyl acetylenedicarboxylates, and various aromatic aldehydes. The nanocatalyst could be easily recovered by applying an external magnetic field and reused at least seven times without a significant change in its catalytic activity.

Graphical abstract: A novel protocol for the synthesis of pyrano[2,3-h]coumarins in the presence of Fe3O4@SiO2@(CH2)3OCO2Na as a magnetically heterogeneous catalyst

Supplementary files

Article information

Article type
Paper
Submitted
19 Dec 2018
Accepted
25 Feb 2019
First published
26 Feb 2019

New J. Chem., 2019,43, 4823-4829

A novel protocol for the synthesis of pyrano[2,3-h]coumarins in the presence of Fe3O4@SiO2@(CH2)3OCO2Na as a magnetically heterogeneous catalyst

H. M. Tanuraghaj and M. Farahi, New J. Chem., 2019, 43, 4823 DOI: 10.1039/C8NJ06415F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements