Oxoammonium-catalyzed oxidation
Oxoammonium-catalyzed oxidation reactions involve the conversion of organic substrates to more highly oxidized materials through the action of an N-oxoammonium species. Nitroxides may also be used in catalytic amounts in the presence of a stoichiometric amount of a terminal oxidant.
Source: Wikipedia — Oxoammonium-catalyzed oxidation (CC BY-SA 4.0)