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21. Syntheses von 3-hydroxy-tetrahydrochinolin-2,4-diones
Stadlbauer W., Kappe Th. Z. Naturforsch. 37b (1982) 1196-1200

Abstract: Oxidation of 3-alkyl- and 3-arylsubstituted 4-hydroxy-2-quinolones (1) by irradiation with UV light, reaction with 3-chloroperoxybenzoic acid or hydrogen peroxide in alkaline solution leads to 3-hydroxy-3-substituted quinoline-2,4-diones (2).

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