ChemInform Abstract: Interaction of Pentafluorobenzoylpyruvic Acid and Its Esters with N- Nucleophiles. Synthesis of 4-Oxoquinoline-2-carboxylic Acids

Autor: Oleg N. Chupakhin, Z. E. Skryabina, P. N. Kondrat'ev, V. I. Saloutin, I. T. Basyl
Rok vydání: 2010
Předmět:
Zdroj: ChemInform. 26
ISSN: 0931-7597
Popis: Nitrogen-substituted 4-oxoquinoline-2-carboxylic acids have been prepared by the reaction of pentafluorobenzoylpyruvic acid with isopropyl-, cyclohexyl-, phenyl- and ethanol-amine. Ammonia and triethylamine, however, were found to react with pentafluorobenzoylpyruvic acid to form only the 2-carboxy-5,6,7-8-tetrafluorochromone; such behaviour has been found in the reactions of ethyl pentafluorobenzoylpyruvate with ammonia and cyclohexylamine.
Databáze: OpenAIRE