N Oxoammonium salt

N-Oxoammonium salts in organic chemistry are a class of organic compounds sharing a functional group with the general structure R₁R₂N⁺=O X⁻ where X⁻ is the counterion. They are isoelectronic with carbonyls. The N-oxoammonium salt from TEMPO is used for oxidation of alcohols to carbonyl groups.