tropolones

https://doi.org/10.1351/goldbook.T06519
2-Hydroxycyclohepta-2,4,6-trienones and derivatives formed by substitution.
T06519.png
See:
tropones
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1373 [Terms] [Paper]