Derivatives of the parent structure
H2N+(O−)OH
, of which the alkylidene derivatives,
R2C=N+(O−)OH
(tautomers of nitroalkanes), are the most commonly encountered. The alkylideneazinic acids are known as nitronic acids, or synonymously as
aci-nitro compounds, e.g.
CH2=N+(O−)OH
methylideneazinic acid.
Source:
PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1321 (https://doi.org/10.1351/pac199567081307)