Abstract
The cathodic reduction of SO2, dissolved in aprotic solvents, to the anion radical SO −2 in the presence of organic halides RX results in the formation of organic sulphones R-SO2-R at appreciable current yields. With dihalides, polymeric sulphones or, as in the case ofo-xylylenedibromide, inner sulphinic esters (sultines) are formed, the latter being easily convertible to the corresponding cyclic sulphones.
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Knittel, D., Kastening, B. An electrosynthesis of sulphones. J Appl Electrochem 3, 291–296 (1973). https://doi.org/10.1007/BF00613035
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DOI: https://doi.org/10.1007/BF00613035