Tert-BuOK/BuLi-induced facile cyclodehydrogenation of diphenyl sulfide to dibenzothiophene

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Abstract

Attempted double ortho-lithiation of diphenyl sulfide using two equivalents of butyllithium in the presence of potassium tert-butoxide in diethyl ether-THF at room temperature under argon resulted in facile cyclodehydrogenation to afford dibenzothiophene in moderate yield.

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Ohgaki, H., Mitsuhashi, H., & Suzuki, H. (2003). Tert-BuOK/BuLi-induced facile cyclodehydrogenation of diphenyl sulfide to dibenzothiophene. Journal of Chemical Research - Part S, (5), 264–265. https://doi.org/10.3184/030823403103174010

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