J. Iran. Chem. Soc., Vol. 8, No. 1 March 2011, pp.142~148.

Current location: JICS Archive > Vol. 8 > No. 1 > Articles : 14

Ammonium Bromide as an Effective and Viable Catalyst in the Oxidation of Sulfides Using Nitro Urea and Silica Sulfuric Acid

A. Ghorbani-Choghamarani* and P. Zamani

Department of Chemistry, Faculty of Science, Ilam University, P.O. Box 69315516, Ilam, Iran

A new catalytic method for the chemoselective oxidation of sulfides to the sulfoxides has been studied. A variety of dialkyl, alkylaryl and diaryl sulfides were subjected to the oxidation reaction by a mixture of nitro urea, derived from urea nitrate, silica sulfuric acid (SiO2-OSO3H) and catalytic amounts of ammonium bromide in CH2Cl2 at room temperature.  

Keywords: Sulfoxide, Nitro urea, Urea nitrate, Ammonium bromide, Silica sulfuric acid, (SiO2-OSO3H)

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