10.30495/ijc.2022.1958448.1933

Nano-cellulose-OSnCl4-x: Green and natural-based renewable nanocatalyst for one-pot synthesis of 2-amino-3-phenylsulfonyl-4H-pyran derivatives

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  • Sayed Rasul Shafe-Mehrabadi1,
  • Bahareh Sadeghi*2,
  • Mohammad Hossein Mosslemin1,
  • Saeedeh Hashemian1,
  1. Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, Iran
  2. Department of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, Iran
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Published in Issue 2023-12-22

How to Cite

Shafe-Mehrabadi, S. R., Sadeghi, B., Mosslemin, M. H., & Hashemian, S. (2023). Nano-cellulose-OSnCl4-x: Green and natural-based renewable nanocatalyst for one-pot synthesis of 2-amino-3-phenylsulfonyl-4H-pyran derivatives. Iranian Journal of Catalysis, 12(4). https://doi.org/10.30495/ijc.2022.1958448.1933
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Abstract

A highly efficient, eco-friendly procedure has been proposed for the synthesis of 2-amino-3-phenylsulfonyl-4H-pyran derivatives via nano-cellulose-OSnCl4-x catalyst prepared from cotton as support treated with tin tetrachloride (SnCl4). This catalyst is characterized by FT-IR, FESEM, TEM, TGA, and EDX. The TEM results confirmed the size of the nano-cellulose-OSnCl4-x catalyst was below 30 nm. The efficiency of this solid acid catalyst was investigated in one-pot, three-component condensation reactions with aromatic aldehydes, dimedone, and phenylsulfonylacetonitrile under reflux conditions. As a result, 2-amino-3-phenylsulfonyl-4H-pyran derivatives were produced under facile conditions in high yield (84-95%) and high rate (30-50 min) using nano-cellulose-OSnCl4-x as a recyclable catalyst. Highlights
  • Preparation, characterization and application of nano-cellulose-OSnCl4-x as a green and natural-based nanocatalyst
  • Nano-cellulose-OSnCl4-x as a renewable nanocatalyst for one-pot synthesis of 2-amino-3-phenylsulfonyl-4H-pyran derivatives
  • Synthesis of new derivatives of 2-amino-7,8-dihydro-7,7-dimethyl-4-phenyl-3-(phenylsulfonyl)-4H-chromen-5(6H)-one
  • Prominent among the advantages of this method are working simplicity, mild reaction condition, short reaction times, higher yields, and environmental friendliness

Keywords

  • Dimedone,
  • Green chemistry,
  • Nano-cellulose-OSnCl4-x.,
  • Phenylsulfonylacetonitrile,
  • Pyran derivatives
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