1-Ethyl-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxylic acid

Autor: Lyudmila V. Sidorenko, Igor V. Ukrainets, Svetlana V. Shishkina, Abdel Naser Dakkah, Oleg V. Shishkin
Rok vydání: 2002
Předmět:
Zdroj: Acta Crystallographica Section E Structure Reports Online. 58:o254-o256
ISSN: 1600-5368
DOI: 10.1107/s1600536801021857
Popis: An X-ray diffraction study of the title compound, C12H11NO4, has shown that this compound exists in the crystal as the 2-oxo-4-hydroxy tautomer. The formation of two O—H⋯O=C-type intramolecular hydrogen bonds leads to the elongation of both exocyclic and carboxyl­ic C=O double bonds involved in the hydrogen bonding, causes shortening of the exocyclic C—O single bond, and also affects the C—C bond lengths in the di­hydro­pyridine ring.
Databáze: OpenAIRE