Oxidation of sulfides to sulfoxides mediated by ionic liquids

Bo Zhang, Ming Dong Zhou, Mirza Cokoja, J. Mink, Shu Liang Zang, Fritz E. Kühn

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

A highly selective and efficient oxidation of sulfides to sulfoxides is presented. The reactions were carried out at room temperature in the absence of a catalyst in the ionic liquid [Bmim][BF4] (Bmim = 1-butyl-3-methylimidazolium) using aqueous H2O2 (35%) as oxidant. The products were obtained in high yields. Compared to the analogous reactions in organic solvents, this system can be recycled without significant loss of activity and selectivity. Additionally, the reaction mechanism was examined by IR, Raman and NMR spectroscopy. Based on these examinations, it appears that the crucial step during the oxidation procedure is the formation of a hydrogen bond between the ionic liquid and the oxidant.

Original languageEnglish
Pages (from-to)8416-8420
Number of pages5
JournalRSC Advances
Volume2
Issue number22
DOIs
Publication statusPublished - Sep 28 2012

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Sulfoxides
Ionic Liquids
Sulfides
Oxidants
Ionic liquids
Oxidation
Organic solvents
Nuclear magnetic resonance spectroscopy
Raman spectroscopy
Infrared spectroscopy
Hydrogen bonds
Catalysts
Temperature
1-butyl-3-methylimidazolium

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Zhang, B., Zhou, M. D., Cokoja, M., Mink, J., Zang, S. L., & Kühn, F. E. (2012). Oxidation of sulfides to sulfoxides mediated by ionic liquids. RSC Advances, 2(22), 8416-8420. https://doi.org/10.1039/c2ra21323k

Oxidation of sulfides to sulfoxides mediated by ionic liquids. / Zhang, Bo; Zhou, Ming Dong; Cokoja, Mirza; Mink, J.; Zang, Shu Liang; Kühn, Fritz E.

In: RSC Advances, Vol. 2, No. 22, 28.09.2012, p. 8416-8420.

Research output: Contribution to journalArticle

Zhang, B, Zhou, MD, Cokoja, M, Mink, J, Zang, SL & Kühn, FE 2012, 'Oxidation of sulfides to sulfoxides mediated by ionic liquids', RSC Advances, vol. 2, no. 22, pp. 8416-8420. https://doi.org/10.1039/c2ra21323k
Zhang B, Zhou MD, Cokoja M, Mink J, Zang SL, Kühn FE. Oxidation of sulfides to sulfoxides mediated by ionic liquids. RSC Advances. 2012 Sep 28;2(22):8416-8420. https://doi.org/10.1039/c2ra21323k
Zhang, Bo ; Zhou, Ming Dong ; Cokoja, Mirza ; Mink, J. ; Zang, Shu Liang ; Kühn, Fritz E. / Oxidation of sulfides to sulfoxides mediated by ionic liquids. In: RSC Advances. 2012 ; Vol. 2, No. 22. pp. 8416-8420.
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