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One-pot, three-component synthesis of 2,3-dihydroquinazolin-4(1H)-ones using p-toluenesulfonic acid–paraformaldehyde copolymer as an efficient and reusable catalyst

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Abstract

p-Toluenesulfonic acid–paraformaldehyde copolymer (copolymer-PTSA) catalyzes the three-component, one-pot condensation reaction of isatoic anhydride, ammonium salts or aromatic and aliphatic amines, and aldehydes in refluxing ethanol. The catalyst is reusable and could be recycled for several runs without any decrease in its efficiency.

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Acknowledgments

We gratefully acknowledge the financial support from the Research Council of Islamic Azad University, Najafabad Branch.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Material Science and Engineering, Islamic Azad University-Najafabad Branch, Najafabad, Iran

    Ali Saffar-Teluri & Shiva Bolouk

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  1. Ali Saffar-Teluri
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  2. Shiva Bolouk
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Correspondence to Ali Saffar-Teluri.

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Saffar-Teluri, A., Bolouk, S. One-pot, three-component synthesis of 2,3-dihydroquinazolin-4(1H)-ones using p-toluenesulfonic acid–paraformaldehyde copolymer as an efficient and reusable catalyst. Monatsh Chem 141, 1113–1115 (2010). https://doi.org/10.1007/s00706-010-0376-3

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  • DOI: https://doi.org/10.1007/s00706-010-0376-3

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