hemiketals

https://doi.org/10.1351/goldbook.H02776
@H02774@ having the structure R2C(OH)OR (RH), derived from @K03386@ by formal addition of an alcohol to the carbonyl group. This term, once abandoned, has been reinstated as a subclass of @H02774@.
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1339 [Terms] [Paper]