An efficient and facile synthesis of the coumarin and ester derivatives using sulfonated polyionic liquid as a highly active heterogeneous catalyst

Document Type : Research Article

Authors

Payame Noor University

Abstract

Article history:
Received
Received in revised form
Accepted
Available online In this research, a novel solid acid catalyst, sulfonic acid immobilized on poly ionic liquid (SPIL), was described. The final catalyst, SPIL, which was simply synthesized and characterized by fourier transform infrared spectroscopy and thermo‐gravimetric analysis, was found to be an efficient and environmentally benign solid acid for the Pechmann and esterification reactions under the solvent free conditions. The studies showed that the catalyst could be easily recovered and reused at least three reaction cycles without any significant loss in catalytic activity and efficiency.
1. Introduction

Ionic liquids, a class of low-melting chemical compounds that include an organic cation and an organic/inorganic anion, are known as molten salts. Generally, the cation is an organic species containing heteroatoms such as phosphorous, sulfur, and nitrogen and the anion may be varied as chloride, bromide, iodide, tetrafluoroborate, hexafluorophosphate, nitrate, and acetate [1]. Because of their unique properties such as non-volatility, non-flammability, safety, recyclability and ability to dissolve a wide range of compounds, a variety of ionic liquids have been used in organic synthesis [2-6].In recent years, synthesis of

Graphical Abstract

An efficient and facile synthesis of the coumarin and ester derivatives using sulfonated polyionic liquid as a highly active heterogeneous catalyst

Keywords

References

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Chemical Review and Letters
Volume 2, Issue 3
October 2019
Pages 123-129

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History

  • Receive Date: 07 November 2019
  • Revise Date: 11 November 2019
  • Accept Date: 11 November 2019

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