4-HYDROXY-2-QUINOLONES. 43. THERMOLYSIS OF ETHYL ESTERS OF 1-R-2-OXO-4-HYDROXY-QUINOLINE-3-CARBOXYLIC ACIDS
DOI:
https://doi.org/10.1007/182Keywords:
3-carbethoxy-4-hydroxy-2-quinolone, quinolinopyran, thermolysis, X-ray diffraction analysisAbstract
Ethyl esters of 1-R-2-oxo-4-hydroxyquinoline-3-carboxylic acids under thermolysis conditions are converted to 5,9-di-R-6,7,8-trioxodiquinolino[3,4-b;3',4'-e]-4H-pyrans. One of the synthesized compounds was studied by X-ray diffraction.
Authors: I. V. Ukrainets, E. A. Taran, O. V. Shishkin, O. V. Gorokhova, S. G. Taran, N. A. Jaradat, and A. V. Turov.
English Translation in Chemistry of Heterocyclic Compounds, 2000, 36 (4), pp 443-448