Title: hemiacetals
Long Title: IUPAC Gold Book - hemiacetals
DOI: 10.1351/goldbook.H02774
Status: current

Definition
Compounds having the general formula $\ce{R2C(OH)OR'}$ ($\ce{R'} \neq \ce{H}$).

Related Terms
- hemiketals: https://dev.goldbook.iupac.org/terms/view/H02776
- lactols: https://dev.goldbook.iupac.org/terms/view/L03438

Source
- PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1339 (https://doi.org/10.1351/pac199567081307)

Other Outputs
- html: https://dev.goldbook.iupac.org/terms/view/H02774/html
- json: https://dev.goldbook.iupac.org/terms/view/H02774/json
- xml: https://dev.goldbook.iupac.org/terms/view/H02774/xml

Citation: Citation: 'hemiacetals' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.H02774
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Accessed: 2026-01-17T21:44:27+00:00