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Sakineh Asghari

Sakineh Asghari

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId:
HIndex:
Faculty: Faculty of Chemistry
Address: Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
Phone: 01135302357

Research

Title
Synthesis and characterization of pyridine-4- carboxylic acid-functionalized Fe3O4 nanoparticles as a magnetic catalyst for the synthesis of tetrahydrobenzo[b]pyran derivatives under solvent-free conditions
Type
JournalPaper
Keywords
Nanomagnetic catalyst, pyridine-4-carboxylic acid, tetrahydrobenzo[b]pyran, aldehydes; malononitrile, dimedone
Year
2017
Journal Synthesis and Reactivity in Inorganic Metal-Organic and Nano-Metal Chemistry
DOI
Researchers Sakineh Asghari ، Majid Mohammadnia

Abstract

Pyridine-4-carboxylic acid (PYCA)-functionalized Fe3O4 nanoparticles as an organic–inorganic hybrid heterogeneous catalyst was fabricated and characterized by Fourier transform infrared, X-ray powder diffraction, thermogravimetric analysis, transmission electron microscopy, scanning electron microscope, and VSM techniques. The catalytic activity of the magnetic catalyst was probed through one-pot synthesis of tetrahydrobenzo[b]pyran derivatives from three-component reactions of aromatic aldehydes, malononitrile, and dimedone under solvent-free conditions. Simple procedure, high yields, short reaction time, and environmentally benign method are advantages of this protocol. The catalyst was readily separated using an external magnet and was reusable without significant loss of its catalytic efficiency.