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M. M. Heravi, K. Bakhtiari, H. A. Oskooie and S. Taheri, “Synthesis of 2,4,5-Triaryl-Imidazoles Catalyzed by NiCl2?6H2O Under He-terogeneous System,” Journal of Molecular Catalysis A: Chemical, Vol. 263, No. 1-2, 2007, pp. 279-281. doi:10.1016/j.molcata.2006.08.070

has been cited by the following article:

• TITLE: Sulfuric Acid Immobilized on Silica Gel as Highly Efficient and Heterogeneous Catalyst for the One-Pot Synthesis of 2,4,5-Triaryl-1H-imidazoles

  AUTHORS: Behrooz Maleki, Hossein Keshvari Shirvan, Fereshteh Taimazi, Elahe Akbarzadeh

  KEYWORDS: 2, 4, 5-Trisubstituted Imidazoles; Solvent-Free Synthesis; Multicomponent Reaction; Silica-Supported Sulfuric Acid; Heterogeneous Catalyst

  JOURNAL NAME: International Journal of Organic Chemistry, Vol.2 No.1, March 15, 2012

  ABSTRACT: Application of sulfuric acid immobilized on silica gel as an efficient and benign catalyst has been explored in the syn-thesis of 2,4,5-Triaryl-1H-imidazoles via condensation reaction of benzil or benzoin, aldehyde and ammonium acetate. The key advantages of this process are high yields, cost effectiveness of catalyst, easy work-up, purification of products by non-chromatographic method and the reusability of the H2SO4.SiO2 catalyst.