Physics:Sulfoxidation
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Short description: Type of chemical reactions involving sulfur oxides
in chemistry, sulfoxidation refers to two distinct reactions.
In one meaning, sulfoxidation refers to the reaction of alkanes with a mixture of sulfur dioxide and oxygen. This reaction is employed industrially to produce alkyl sulfonic acids, which are used as surfactants. The reaction requires UV-radiation.[1]
- [math]\ce{ RH + SO2 + 1/2 O2 -> RSO3H }[/math]
The reaction favors secondary positions in accord with its free-radical mechanism. Mixtures are produced. Semiconductor-sensitized variants have been reported.[2]
Sulfoxidation can also refer to the oxidation of a thioether to a sulfoxide.
- [math]\ce{ R2S + O -> R2SO }[/math]
A typical source of "O" is hydrogen peroxide.[3]
References
- ↑ Kosswig, Kurt (2000). "Ullmann's Encyclopedia of Industrial Chemistry". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a25_503.
- ↑ Parrino, Francesco; Ramakrishnan, Ayyappan; Kisch, Horst (2008). "Semiconductor-Photocatalyzed Sulfoxidation of Alkanes". Angewandte Chemie International Edition 47 (37): 7107–7109. doi:10.1002/anie.200800326. PMID 18683178.
- ↑ Srour, Hassan; Le Maux, Paul; Chevance, Soizic; Simonneaux, Gérard (2013). "Metal-Catalyzed Asymmetric Sulfoxidation, Epoxidation and Hydroxylation by Hydrogen Peroxide". Coordination Chemistry Reviews 257 (21–22): 3030–3050. doi:10.1016/j.ccr.2013.05.010. https://hal.archives-ouvertes.fr/hal-00865625/file/CCR_2_Simonneaux-accepted.pdf.
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