Synthesis ofN-substituted 2-(5,6,7,8-tetrafluoro-4-oxo-1,4-dihydroquinolin-3-yl)glyoxylic acids |
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| Authors: | G. A. Obanin A. S. Fokin Ya. V. Burgart O. V. Ryzhkov Z. E. Skryabina V. I. Saloutin O. N. Chupakhin |
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| Affiliation: | (1) Institute of Organic Synthesis, Ural Division of the Russian Academy of Sciences, 20 ul S. Kovalevskoy, 620219 Ekaterinburg, Russian Federation |
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| Abstract: | Methods for the synthesis of the earlier unknownN-substituted 2-(5,6,7,8-tetrafluoro-4-oxo-1,4-dihydroquinolin-3-yl)glycoxylic acids their esters from copper chelate of ethyl pentafluorobenzoylpyruvate were developed. The structure of intermediate ethyl 4-(R-amino)-2-oxo-3-pentafluorobenzoylbut-3-enoates is discussed. Published inIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1234–1239, July, 2000. |
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| Keywords: | ethyl pentafluorobenzoylpyruvate ethyl 4-(R-amino)-2-oxo-3-pentafluorobenzoylbut-3-enoates 3-ethoxalyl-5,6,7,8-tetrafluoroquinolin-4-ones N-substituted 2-(5,6,7,8-tetrafluoro-4-oxo-1,4-dihydroquinolin-3-yl)glyoxylic acids |
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