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Pure and Applied Chemistry

The Scientific Journal of IUPAC

Ed. by Burrows, Hugh / Stohner, Jürgen


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1365-3075
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Volume 90, Issue 2

Issues

Green multicomponent synthesis of four different classes of six-membered N-containing and O-containing heterocycles catalyzed by an efficient chitosan-based magnetic bionanocomposite

Ali MalekiORCID iD: http://orcid.org/0000-0001-5490-3350 / Mina Ghassemi
  • Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Razieh Firouzi-Haji
  • Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2018-01-08 | DOI: https://doi.org/10.1515/pac-2017-0702

Abstract

In this work, an efficient chitosan-based magnetic bionanocomposite was synthesized via a two-step method and characterized by Fourier-transform infrared (FT-IR) spectroscopy, thermo gravimetric analysis (TGA), energy-dispersive X-ray (EDX) analysis and scanning electron microscopy (SEM) images. Then, it was used as a heterogeneous catalyst for the one-pot multicomponent syntheses of a variety of heterocyclic compounds including 2-amino-4H-pyrans, 2-amino-4H-chromens and polyhydroquinoline derivatives in ethanol at room temperature. The catalyst was simply separated from the reaction mixture by an external magnet and reused several times. The products were isolated from the reaction mixtures, without any need of column chromatography, in high-to-excellent yields. A reusable and easily recoverable catalyst, use of a green solvent, room temperature and mild reaction conditions are some advantages of the present work.

This article offers supplementary material which is provided at the end of the article.

Keywords: bionanocomposite; chitosan; copper ferrite; heterocycles; ICGC-6; magnetic

Article note:

A collection of invited papers based on presentations at the 6th international IUPAC Conference on Green Chemistry (ICGC-6), Venice (Italy), 4–8 September 2016.

References

About the article

Published Online: 2018-01-08

Published in Print: 2018-02-23


Citation Information: Pure and Applied Chemistry, Volume 90, Issue 2, Pages 387–394, ISSN (Online) 1365-3075, ISSN (Print) 0033-4545, DOI: https://doi.org/10.1515/pac-2017-0702.

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©2018 IUPAC & De Gruyter. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. For more information, please visit: http://creativecommons.org/licenses/by-nc-nd/4.0/.Get Permission

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