Scheme 1.

Scope of Ni^IV-catalyzed trifluoromethylation^a

^a General conditions: 1.0 equiv B, 5.0 equiv arene, 5 mol % of II in DMSO for 24 h at 25 ºC. ¹⁹F NMR yields are in parentheses and were determined using trifluorotoluene as an internal standard. In cases where multiple isomers were formed, NMR yield is given as a combined yield. *Signifies the site of a minor isomer.