ketyls

Radical anions (or the corresponding salts) derived from ketones by addition of an electron R₂C^.–O⁻

R₂C⁻–O^..

Note:

Ketyls produce two types of conjugate acids: R₂C^.–OH and R₂CH–O^.. The former are α-hydroxyalkyl radicals and the latter are alkoxyl radicals, but they have also been called ketyls in photochemistry.

Source:

PAC, 1995, 67, 1307 (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1346