03389 IUPAC Gold Book - ketyls 10.1351/goldbook.K03389 K03389 current 1 Radical anions (or the corresponding salts) derived from ketones by addition of an electron $\ce{R2C^{.}–O^{−} R2C^{−}–O^{.}}$. Ketyls produce two types of conjugate acids: $\ce{R2C^{.}–OH}$ and $\ce{R2CH–O^{.}}$. The former are α-hydroxyalkyl radicals and the latter are alkoxyl radicals, but they have also been called ketyls in photochemistry. ketones https://goldbook.iupac.org//terms/view/K03386 photochemistry https://goldbook.iupac.org//terms/view/P04588 PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1346 (https://doi.org/10.1351/pac199567081307) https://goldbook.iupac.org/terms/view/K03389/html https://goldbook.iupac.org/terms/view/K03389/json https://goldbook.iupac.org/terms/view/K03389/plain Citation: 'ketyls' 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.K03389 The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. 2026-06-21T05:12:04+00:00