Electrochemical Synthesis of Dibenzothiophenes via Intramolecular C–S Cyclization with a Halogen Mediator

Koichi Mitsudo,* Yuri Tachibana, Eisuke Sato, Seiji Suga*
Org. Lett. 2022, 24, 8547–8552.
DOI: 10.1021/acs.orglett.2c03574

Ms. Tachibana’s work has been published in Org. Lett.! Electrochemical transformation of bi(aryl)disulfides to dibenzothiophenes was developed. While similar reactions using transition metal catalysts are known, but the electrochemical reaction proceeds quickly without transition metals to give dibenzothiophenes. The key is the addition of bromide ion as a mediator.

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