N-Oxoammonium salt
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![](http://upload.wikimedia.org/wikipedia/commons/thumb/2/26/N-Oxoammonium_salt.png/220px-N-Oxoammonium_salt.png)
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.