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As a new transformation of organosulfur compounds, intramolecular desulfitative coupling of diaryl sulfones to the corresponding biaryls has been developed with the aid of nickel–NHC catalysts. This catalytic elimination of SO 2 was also applicable to alkenyl aryl sulfone to furnish the corresponding alkenyl arene.
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Takahashi et al. (2018) studied this question.
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