Structure of 5-Hydroxy-2-hydroxymethyl-4-pyridones

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1979 English Publisher:Oxford University Press (OUP)Journal:Bulletin of the Chemical Society of Japan, volume 52, pages 107-110 (issn: 0009-2673, eissn: 1348-0634,

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Authors: Kimiaki Imafuku; Makoto Ishizaka; Hisashi Matsumura;

doi: 10.1246/bcsj.52.107

Structure of 5-Hydroxy-2-hydroxymethyl-4-pyridones

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Abstract

Abstract 5-Hydroxy-2-hydroxymethyl-4-pyridone and its N-methyl, N-ethyl, and N-phenyl derivatives were prepared from kojic acid. The UV spectra in neutral, acid, and alkaline solutions showed that the neutral species and the conjugate acids existed in the pyridone and the pyridine form, respectively. The conjugate bases may exist in both forms. The acid dissociation constants and the halochromism have been measured and discussed.

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Kumamoto University
Japan

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