&lt;strong&gt;The one-pot three component synthesis of imidazole derivatives by using of 1,3,5-Tris(2-hydroxyethyl) isocyanurate-f&lt;/strong&gt;&lt;strong&gt;unctionalized graphene oxide as a novel and efficient nanocatalyst &lt;/strong&gt;

Mohammad G Dekamin,Fatemeh Mehdipoor,Amir Hossein Fattahi,Amene Yaghoubi

doi:10.3390/ecsoc-20-a009

<strong>The one-pot three component synthesis of imidazole derivatives by using of 1,3,5-Tris(2-hydroxyethyl) isocyanurate-f</strong><strong>unctionalized graphene oxide as a novel and efficient nanocatalyst </strong>

Mohammad G Dekamin, Fatemeh Mehdipoor + Show 2 more

Open Access

https://doi.org/10.3390/ecsoc-20-a009

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Publication Date: Nov 1, 2016
Citations: 1	License type: cc-by

Affiliation: Iran University of Science and Technology

Abstract

The preparation, characterization and catalytic application of a novel 1,3,5-Tris(2-hydroxyethyl) isocyanurate-functionalized graphene oxide is described. The catalyst was characterized by nitrogen adsorption-desorption analysis, scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. The thermal stability of the material was also determined by thermal gravimetric analysis (TGA). The catalytic application of 1,3,5-Tris(2-hydroxyethyl) isocyanurate-functionalized graphene oxide nanocatalyst was then investigated in the synthesis imidazole derivatives from benzil, different aldehydes and ammonium acetate under solvent-free conditions in short reaction times and good to excellent yields. The significant advantages of this procedure are low loading of the catalyst, avoiding the use of toxic transition metals, short reaction times, high to excellent yields, easy separation and puriﬁcation of the products and reusability of this nanocatalyst.

Highlights

In recent years, graphene has become a popular material, attracting attention in the fields of chemistry, physics, and materials science because of its optimal electronic, thermal, and mechanical properties
The catalyst was characterized with some techniques such as infrared (IR) spectroscopy, thermal gravimetric analysis (TGA), powder X-ray diffraction (PXRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM)
FT-IR spectroscopy was performed for the confirmation of the formation of ester bond between Graphene oxide (GO) and 1, 3, 5-Tris (2-hydroxyethyl) isocyanurate

Summary

Introduction

Graphene has become a popular material, attracting attention in the fields of chemistry, physics, and materials science because of its optimal electronic, thermal, and mechanical properties. A few methods have been described for the onepot multicomponent synthesis of 2,4,5-trisubstituted imidazole derivatives from benzoin in the presence of different catalysts. To show the efficiency of the catalyst (1) for the synthesis of 2,4,5-trisubstituted imidazoles (5), the reaction of benzil (2, 1 mmol), 4-chlorobenzaldehyde (3a, 1 mmol) and ammonium acetate (4, 2.5 mmol) was investigated as the model reaction.

Results

Conclusion