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Synthesis and properties of novel reusable nano-ordered KIT-5-N-sulfamic acid as a heterogeneous catalyst for solvent-free synthesis of 2,4,5-triaryl-1 H-imidazoles

  • Razieh Mirsafaei , Majid M. Heravi EMAIL logo , Shervin Ahmadi and Tayebeh Hosseinnejad
Published/Copyright: February 2, 2016
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Chemical Papers
From the journal Chemical Papers Volume 70 Issue 4

Abstract

A novel silica-bonded propyl-N-sulfamic acid nanocatalyst (NHSO3H-KIT-5) supported on modified silica mesopore KIT-5 as an organic-inorganic hybrid with high specific surface area was successfully prepared. The 3-aminopropyltriethoxysilane (APTES) on KIT-5 was reacted with chlorosulfonic acid and accurately characterized by the FT-IR, XRD, SEM, EDAXS, and TGA techniques. This heterogeneous and recyclable catalyst catalyzed one pot, multicomponent condensation of benzil, aromatic aldehydes, and ammonium acetate in the presences of 0.05 g of nanocatalyst under solvent-free conditions to afford triaryl-imidazoles in excellent yields. This catalyst showed high catalytic activity under green conditions. This reaction was performed under open air conditions and required no special reaction conditions or chromatographic separation for purification.

Keywords: KIT-5 nanosilica; heterogeneous catalysis; solvent-free conditions; organic-inorganic hybrids; density functional theory; quantum theory of atoms in molecules

Acknowledgements

Professor Heravi is grateful for partial financial support from the Iran National Science Foundation. The authors are thankful to the Iran Polymer and Petrochemical Institute for providing the SEM-EDXS facility, the Kashan University for providing XRD analysis and the Islamic Azad Yazd University for providing IR analysis.

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Received: 2015-6-16
Revised: 2015-9-5
Accepted: 2015-9-16
Published Online: 2016-2-2
Published in Print: 2016-4-1

© 2015 Institute of Chemistry, Slovak Academy of Sciences

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  24. Hydrogel supported chiral imidazolidinone for organocatalytic enantioselective reduction of olefins in water
  25. Original Paper
  26. Continuous synthesis of N-ethylethylenediamine over supported Cu–Zn–La catalysts
  27. Preface
  28. Enzyme-assisted extraction of citrus essential oil
  29. Preface
  30. Experimental investigations of liquid flow in pipe with flat internal baffles
https://doi.org/10.1515/chempap-2015-0228
Keywords for this article
KIT-5 nanosilica; heterogeneous catalysis; solvent-free conditions; organic-inorganic hybrids; density functional theory; quantum theory of atoms in molecules

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  1. Original Paper
  2. Prevention of degradation of γ-irradiated EPDM using phenolic antioxidants
  3. Original Paper
  4. Differentiation of black, green, herbal and fruit bagged teas based on multi-element analysis using inductively-coupled plasma atomic emission spectrometry
  5. Original Paper
  6. Reaction mechanisms of carbon dioxide methanation
  7. Review
  8. Power consumption and gas–liquid dispersion in turbulently agitated vessels with vertical dual-array tubular coil baffles
  9. Short Communication
  10. Tannins analysis from different medicinal plants extracts using MALDI-TOF and MEKC
  11. Original Paper
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  14. Synthesis of Fe3O4–Ag nanocomposites and their application to enzymeless hydrogen peroxide detection
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  16. Possibilities for removal of chlorinated dye Mordant Blue 9 from model waste water‡
  17. Review
  18. Preparation and properties of gelatin films incorporated with N-hydroxysuccinimide-activated end-bit binary acid
  19. Original Paper
  20. Synthesis and properties of novel reusable nano-ordered KIT-5-N-sulfamic acid as a heterogeneous catalyst for solvent-free synthesis of 2,4,5-triaryl-1 H-imidazoles
  21. Short Communication
  22. Prediction of power consumption in mechanically agitated gassed reactor in viscous batch‡
  23. Original Paper
  24. Hydrogel supported chiral imidazolidinone for organocatalytic enantioselective reduction of olefins in water
  25. Original Paper
  26. Continuous synthesis of N-ethylethylenediamine over supported Cu–Zn–La catalysts
  27. Preface
  28. Enzyme-assisted extraction of citrus essential oil
  29. Preface
  30. Experimental investigations of liquid flow in pipe with flat internal baffles
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