Reaction of pentafluorobenzoylpyruvic acid with amines
VI Saloutin, ZE Skryabina, PN Kondrat'ev…
Index: Saloutin, V. I.; Bazyl', I. T.; Skryabina, Z. E.; Kondrat'ev, P. N.; Chupakhin, O. N. Russian Chemical Bulletin, 1994 , vol. 43, # 2 p. 279 - 282 Izvestiya Akademi Nauk, Seriya Khimicheskaya, 1994 , # 2 p. 299 - 302
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Abstract
Abstract Reactions of pentafluorobenzoylpyruvic acid with amines afford the respective enamines. The intramolecular cyclization of the latter results in N-substituted 4-quinolone-2- carboxylic acids. Ammonia and triethylamine favor the cyclization of pentafluorobenzoylpyruvic acid to 2-carboxychromone.
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