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Kojic acid derivatives. 1. Preparation and bromination of some 5-hydroxy-2-(R-thiomethyl)-4H-pyran-4-ones

R. Sandtnerová and M. Koóš

Institute of Chemistry, Slovak Academy of Sciences, CS-84238 Bratislava

 

Abstract: By the reaction of chlorokojic acid with some sodium thiolates, 5-hydroxy-2-(R-thiomethyl)-4H-pyran-4-ones were prepared. Bromination of these compounds using N-bromosuccinimide afforded corresponding 6-bromo derivatives. The structure of the prepared pyranones was proved by IR, 1H NMR, 13C NMR, and mass spectral data. Their antimicrobial activity was also determined.

Full paper in Portable Document Format: 454a559.pdf

 

Chemical Papers 45 (4) 559–565 (1991)

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