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.

Synthesis of 2 (3)-ethoxycarbonyl-5, 6, 7, 8-tetrafluorochro...

[Saloutin, V. I.; Skryabina, Z. E.; Bazyl, I. T.; Chupakhin, O. N. Russian Chemical Bulletin, 1993 , vol. 42, # 2 p. 322 - 325 Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1993 , # 2 p. 362 - 364]

Interaction of pentafluorobenzoylpyruvic acid and its esters...

[Saloutin, V. I.; Skryabina, Z. E.; Basyl', I. T.; Kondrat'ev, P. N.; Chupakhin, O. N. Journal of Fluorine Chemistry, 1994 , vol. 69, # 1 p. 119 - 126]