nitrones

The N-oxides of imines, that have the structure R2C=N+(O)R' (R'H). Synonymous with azomethine oxides. N-Oxides R2C=N+(O)H may be included.
See also: dipolar compounds
Source:
PAC, 1995, 67, 1307 (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1351