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Electrosynthesis of sulphones: coupled cathodic-anodic process

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Abstract

A continuous process for the electrosynthesis of sulphones by cathodic reduction of sulphur dioxide in the presence of organic halides has been investigated. The organic halide, consumed in the cathode process, is regenerated at the anode side and the halogen is hence recycled. As a model process, the synthesis of dipropyl sulphone via propyl bromide has been investigated; SO2 and propyl alcohol are the starting materials. The alcohol, simultaneously serving as the anolyte solvent, reduces bromine to give hydrobromic acid which, in turn, regenerates the organic halide by reaction with further alcohol. The cathodic and anodic yields are both promising.

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Author notes

  1. J. Mergel

    Present address: Institut für Chemie, Kernforschungsanlage Jülich, Jülich, Federal Republic of Germany

Authors and Affiliations

  1. Institut für Physikalische Chemie, Universität Hamburg, Hamburg, Federal Republic of Germany

    H. J. Wille, D. Knittel, B. Kastening & J. Mergel

Authors
  1. H. J. Wille
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  2. D. Knittel
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  3. B. Kastening
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  4. J. Mergel
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Wille, H.J., Knittel, D., Kastening, B. et al. Electrosynthesis of sulphones: coupled cathodic-anodic process. J Appl Electrochem 10, 489–494 (1980). https://doi.org/10.1007/BF00614082

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  • DOI: https://doi.org/10.1007/BF00614082

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