amine oxides

https://doi.org/10.1351/goldbook.A00273
Compounds derived from tertiary amines by the attachment of one oxygen atom to the nitrogen atom
R3N+–O
. By extension the term includes the analogous derivatives of primary and secondary amines.
Source:
PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1316 (https://doi.org/10.1351/pac199567081307)