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A visible-light-enabled fluorosulfonylalkynylation of alkenes has been developed using alkynyl sulfonyl fluorides as bifunctional reagents under catalytic aryl diazonium activation. This photocatalyst- and oxidant-free protocol affords diverse 1-sulfonyl fluoride-2-alkynyl adducts in good yields with excellent chemoselectivity and a broad scope, enabling late-stage diversification while installing a SuFEx-ready sulfonyl fluoride and a versatile alkyne in one step.
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Tang et al. (2026) studied this question.
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