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Abstract

The ionic liquid supported on magnetic nanoparticles ( -Fe2O3@SiO2-IL-ZnxCly) was found to be an effective catalyst for the Paal–Knorr reaction. The condensation of aromatic amine and acetonylacetone under solvent-free sonication afforded the desired pyrrole derivatives in high yields. The pyrrole derivatives was isolated in yield with a environmentally friendly process. The structure of products was determined by modern methods such as nuclear magnetic resonance spectroscopy (1H and 13C NMR), high resolution mass spectrometry (HR-ESI-MS) or gas chromatography-mass spectrometry (GS-MS). Moreover, the catalyst could be easily recovered by magnetic separation and reused for five times without significant loss of the catalytic activity.

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Issue: Vol 2 No 5 (2018)
Page No.: 68-75
Published: Jul 2, 2019
Section: Original Research
DOI: https://doi.org/10.32508/stdjns.v2i5.780

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Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Nguyen, H., & Tran, P. (2019). Ionic liquid supported on magnetic nanoparticles (-Fe2O3@SiO2-IL-ZnxCly) as the green catalyst for the Paal-Knorr reaction. Science & Technology Development Journal: Natural Sciences, 2(5), 68-75. https://doi.org/https://doi.org/10.32508/stdjns.v2i5.780


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