Chemistry of Heterocyclic Compounds p. 670 - 673 (1988)
Update date:2022-08-04
Topics:
Brasyunas, V.B.
Andreyanova, T.A.
Safonova, T.S.
Solov'eva, N.P.
Turchin, K.F.
Sheinker, Yu.N.
2-Methylquinoline-4-carboxylic acid was obtained by the reaction of isatin with acetone in the presence of alkali.This acid was converted through a step involving (E)-2-styrylquinoline-4-carboxylic acid to quinoline-2,4-dicarboxylic acid, from which quinoline-4-carboxylic acid was obtained by refluxing in nitrobenzene.The structures of the synthesized compounds were confirmed by 1H NMR spectroscopy using two-dimensional (2DJ) spectra.
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