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[(SO3H)4C4C1Im]HSO4 is a Brönsted ionic liquid, which was found to be an effective catalyst for organic synthesis. Ionic liquid was prepared from 1-methylimidazole and 1,4- butanesultone (ratio = 1:1), structure of [(SO3H)4C4C1Im]HSO4 was characterized by using nuclear magnetic resonance NMR spectroscopy and high-resolution electrospray ionisation mass spectrometry (HR-ESI-MS). Ionic liquid was used as a catalyst for multi-component reaction, which afforded the desired products in high yields (over 80%) and short reaction time (5 min) under microwave irradiation. The catalyst could be recycled several times without loss of efficient catalytic activity.

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Issue: Vol 2 No 3 (2018)
Page No.: 68-77
Published: May 23, 2019
Section: Original Research

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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.

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Nguyen, H., Huynh, N., & Tran, P. (2019). Multi-component reaction between aromatic aldehyde, ethyl acetoacetate and urea catalyzed by Brönsted ionic liquid under microwave irradiation. Science and Technology Development Journal - Natural Sciences, 2(3), 68-77.

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