Abstract
Abstractgem‐Difluoroalkenes are unique structural motifs with important applications ranging from drugs to materials. Herein, we report a novel radical‐mediated defluorinative allylation of sulfamate esters with through distal C(sp3)−H functionalization under photoredox conditions. The reaction could readily incorporate various gem‐difluoroalkene motifs into previously unfunctionalized sp3 carbon centers. The transformation allows directly dual activation of N−H and C(sp3)−H bonds via a photocatalytic and redox‐neutral process, as well as using water as environmentally friendly co‐solvent. The reaction could provide a general and operationally simple method to access gem‐difluoroalkene compounds with high diversity.
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