Influence of Temperature and pH on the Platinum Catalysed Oxidation of Sucrose

Abstract

Abstract The influence of temperature and pH on the platinum catalysed oxidation of sucrose has been studied. Decreasing reaction temperature from 100 °C to 80 °C markedly reduced oxidation rate but had little or no effect on selectivity. At pH 7.0, the C6 and C6′ hydroxyl groups were oxidised, but there was no oxidation at the C1′ hydroxyl group. At pH 9.0 the C1′ hydroxyl group was oxidised and the resulting product mixture contained a higher proportion of dicarboxylic acid disaccharides and decomposition products. 1H NMR was used to analyse complex product mixtures.