azomethines

https://doi.org/10.1351/goldbook.A00564
Compounds having the structure RN=CR2 (RH). Many consider the term to include the compounds RN=CRH (RH), thus making azomethines synonymous with Schiff bases.
See: imines, Schiff bases
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)