Reaction of pentafluorobenzoylpyruvic acid with amines
作者:V. I. Saloutin、I. T. Bazyl'、Z. E. Skryabina、P. N. Kondrat'ev、O. N. Chupakhin
DOI:10.1007/bf00695829
日期:1994.2
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,