Scheme 2. Substrate Scope of the Difluorinative Cyclopropanation of BCBs by I(I)/I(III) Catalysis.

Green box: combined yield of both cis and trans isomers and dr determined by ¹⁹F NMR with α,α,α-trifluorotoluene as an internal standard.

Gray box: isolated yield following column chromatography, average of 2 runs, 0.50 mmol scale.

Reaction performed on a 4.00 mmol scale.

Reaction performed on a 3.75 mmol scale.