Selective N-arylation of pyridin-2-ones with diaryliodonium salts.

^a1 mmol scale.

^bEt₂NPh (2.5 equiv.).

^c100 °C.

^dDIPEA (2.5 equiv.), Ph₂IBF₄ (1.2 equiv.).

^eDIPEA (3 equiv.), 2-fluorotoluene.

^fClPh, 130 °C.

^gPh₂IOTf (1 equiv.).

^h(4-MeOPh)₂IBF₄ (1.2 equiv.).

ⁱ(3-EtO₂CPh)₂IBF₄ (1.2 equiv.).

^j(2-MeOPh)₂IBF₄ (1.2 equiv.).