S 98 Synthesis of N-substituted 2-(5,6,7,8-tetrafluoro-4-oxo-1,4-dihydroquinolin-3-yl)glyoxylic acids [Electronic resource] / G. A. Obanin, A. S. Fokin, Ya. V. Burgart, O. V. Ryzhkov, Z. E. Skryabina, V. I. Saloutin, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2000. - Vol. 49, № 7. - P1231-1236 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ETHYL PENTAFLUOROBENZOYLPYRUVATE -- SYNTHESIS Аннотация: 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 \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2000, 49 (7), 1231.pdf |