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Nanomagnetically Modified Sulfuric Acid (γ-Fe2O3@SiO2-OSO3H): An Efficient, Fast, and Reusable Catalyst for Greener Paal–Knorr Pyrrole Synthesis

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Abstract

Paal–Knorr pyrrole synthesis was performed in the presence of superparamagnetic nanoparticles of modified sulfuric acid (γ-Fe2O3@SiO2-OSO3H) as an efficient and magnetically separable catalyst. Recovery of the catalyst was simple using a magnet, allowing its reuse without significant loss of its catalytic activity (over five cycles).

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Acknowledgments

The authors would like to acknowledge financial support provided by Tarbiat Modares University for carrying out this research.

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Authors and Affiliations

  1. Chemistry Department, Tarbiat Modares University, P. O. Box 14155-4838, Tehran, Iran

    Samaneh Cheraghi, Dariush Saberi & Akbar Heydari

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  1. Samaneh Cheraghi
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  2. Dariush Saberi
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  3. Akbar Heydari
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Correspondence to Akbar Heydari.

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Cheraghi, S., Saberi, D. & Heydari, A. Nanomagnetically Modified Sulfuric Acid (γ-Fe2O3@SiO2-OSO3H): An Efficient, Fast, and Reusable Catalyst for Greener Paal–Knorr Pyrrole Synthesis. Catal Lett 144, 1339–1343 (2014). https://doi.org/10.1007/s10562-014-1197-5

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  • DOI: https://doi.org/10.1007/s10562-014-1197-5

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