Consecutive electron and energy transfer photocatalysis enabled trifunctionalization of trifluoromethylalkenes

One photocatalyst drives a consecutive SET/EnT cascade merging defluorinative alkylation and di-π-ethane rearrangement, enabling α,α-difluorobenzylcyclopropanes synthesis from trifluoromethylalkenes and carboxylic acids via C–F/C–C bond cleavage.