Scheme 7.
Distinct oxidation strategies to reach the NiIV species [NiIV(Tp)(aryl)(CF3)2] 24a–e from [NMe4][NiII(Tp)(CF3)2] (22) and aryliodonium salts (top left) or [NBu4][NiII(Tp)(Ph)(CF3)] (25a) and TTDT (bottom left), and R.E. of benzotrifluorides 26a–e from 24a–e. Adapted from reference [69].
