<i>Ortho vs Ipso</i>: Site-Selective Pd and Norbornene-Catalyzed Arene C–H Amination Using Aryl Halides

A Pd and norbornene-catalyzed <i>ortho</i>-arene amination via Catellani-type C–H functionalization is reported. Aryl halides are used as substrates; <i>N</i>-benzoyloxyamines and isopropanol are employed as the amine source (oxidant) and reductant respectively. Examples are provided in 50–99% yields with high functional group tolerance. This method gives complementary site selectivity at the <i>ortho</i>- instead of <i>ipso</i>-position of aryl halides