Title : ( Synthesis of 2,4,5-triaryl-1H-imidazoles using a potent, green and reusable nano catalyst (FHS/SiO2) )
Authors: Mehdi Bakavoli , Hossein Eshghi , ali mohammadi , hassanali moradi , Javad Ebrahimib ,
دانلود فایل برای اعضای دانشگاهAccess to full-text not allowed by authors
Abstract
A simple, green and efficient method for synthesis of 2,4,5-trisubstituted imidazoles is described via three-component cyclocondensation of benzil or benzoin, aldehyde and ammonium acetate by using the nano SiO2-supported ferric hydrogen sulfate (FHS), as a catalyst, under solvent-free conditions. The nano SiO2 support and catalyst were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and IR spectroscopy. In this project, the optimum conditions such as: reaction temperature, reaction time and amount of catalyst were investigated. The major advantages of the present method are high yields, shorter reaction times, easy work-up, purification of products by non-chromatographic method and the reusability of the catalyst.
Keywords
, 2, 4, 5-Trisubstituted imidazoles; Heterogeneous catalyst; Solvent-free synthesis; Nano catalyst; Ferric hydrogen sulfate.
@article{paperid:1053107,
author = {Bakavoli, Mehdi and Eshghi, Hossein and Mohammadi, Ali and Moradi, Hassanali and Javad Ebrahimib},
title = {Synthesis of 2,4,5-triaryl-1H-imidazoles using a potent, green and reusable nano catalyst (FHS/SiO2)},
journal = {Iranian Journal of Catalysis},
year = {2015},
volume = {5},
number = {3},
month = {September},
issn = {2252-0236},
pages = {237--243},
numpages = {6},
keywords = {2;4;5-Trisubstituted imidazoles; Heterogeneous catalyst; Solvent-free synthesis; Nano catalyst; Ferric hydrogen sulfate.},
}
%0 Journal Article
%T Synthesis of 2,4,5-triaryl-1H-imidazoles using a potent, green and reusable nano catalyst (FHS/SiO2)
%A Bakavoli, Mehdi
%A Eshghi, Hossein
%A Mohammadi, Ali
%A Moradi, Hassanali
%A Javad Ebrahimib
%J Iranian Journal of Catalysis
%@ 2252-0236
%D 2015
