催化学报

催化学报 ›› 2009, Vol. 30 ›› Issue (4): 273-275.

• 研究快讯 •    下一篇

Chemoselective Oxidation of Sulfides with Ammonium Nitrate and Silica Sulfu-ric Acid Catalyzed by KBr

Arash GHORBANI-CHOGHAMARANI1,*, Mohammad Ali ZOLFIGOL2,#, Toktam RASTEGAR2   

  1. 1Department of Chemistry, Faculty of Science, Ilam University, P.O. Box 69315516, Ilam, Iran; 2Faculty of Chemistry, Bu-Ali Sina University, P.O. Box 6517838683, Hamadan, Iran
  • 收稿日期:2009-04-25 出版日期:2009-04-25 发布日期:2013-01-21

Chemoselective Oxidation of Sulfides with Ammonium Nitrate and Silica Sulfu-ric Acid Catalyzed by KBr

Arash GHORBANI-CHOGHAMARANI1,*, Mohammad Ali ZOLFIGOL2,#, Toktam RASTEGAR2   

  1. 1Department of Chemistry, Faculty of Science, Ilam University, P.O. Box 69315516, Ilam, Iran; 2Faculty of Chemistry, Bu-Ali Sina University, P.O. Box 6517838683, Hamadan, Iran
  • Received:2009-04-25 Online:2009-04-25 Published:2013-01-21

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摘要： A convenient and selective catalytic method for the sulfoxidation of aliphatic and aromatic sulfides by treatment of NH4NO3, silica sulfuric acid, wet SiO2 (50% w/w) and a catalytic amount of KBr in CH2Cl2 at room temperature was developed. Many sulfides can be selectively oxidized at room temperature in good to excellent yields. The reaction proceeds without over-oxidation to sulfones under mild conditions.

关键词: sulfide, sulfoxide, chemoselectivity, ammonium nitrate, potassium bromide, silica sulfuric acid

Abstract: A highly efficient chemoselective oxidation of sulfides to sulfoxides by ammonium nitrate, silica sulfuric acid, and a catalytic amount of KBr in the presence of wet SiO2.

Key words: sulfide, sulfoxide, chemoselectivity, ammonium nitrate, potassium bromide, silica sulfuric acid