STRUCTURE OF 5,6,7,8-TETRAFLUORO-4-HYDROXYCOUMARINS
DOI:
https://doi.org/10.1007/927Keywords:
5, 6, 7, 8-tetrafluoro-4-hydroxycoumarin, imine-enamine tautomerism, keto-enol tautomerismAbstract
The structure of 5,6,7,8-tetrafluoro-4-hydroxycoumarin and its 3-substituted derivatives was studied by X-ray structural analysis and IR, 1H, 13C, and 15N NMR spectroscopy. It was established that the nature of the substituent at the position 3 of the coumarin ring has a significant effect on its structure.
Authors: K. V. Shcherbakov, Ya. V. Burgart, M. I. Kodess, and V. I. Saloutin
English Translation in Chemistry of Heterocyclic Compounds, 2012, 48 (9), pp 1297-1306