Multigram-scale synthesis of a saccharin-based reagent enables efficient electrophilic installation in diverse compounds, suggesting a valuable method for agrochemical development.
We report the multigram‐scale synthesis of a shelf‐stable, saccharin‐based reagent for the direct electrophilic installation of the heptafluoroisopropylthio (–SCF(CF 3 ) 2 ) group. This bulky, highly fluorinated motif is increasingly valued for tuning lipophilicity, polarity, and metabolic stability in agrochemical design, yet methods for its direct incorporation remain scarce. The reagent enables mild, one‐step formation of CSR F and NSR F bonds with a broad range of nucleophilic substrates, including indoles, pyrroles, phenols, and amines, exhibiting genuine electrophilic reactivity and broad functional‐group tolerance. Furthermore, oxidation of the resulting NSR F bond provides access to sulfonamide derivatives without the need for conventional sulfonyl chloride precursors. This strategy offers a practical and modular route to complex fluorinated sulfur compounds and expands the synthetic toolbox for late‐stage functionalization with valuable polyfluoroalkylthio motifs (–SR F ).
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Jaureguizar et al. (2026) studied this question.
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