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        Oxidation of 1,2-cyclohexanediol as a step for adipic acid synthesis

        Kamil Peckh,Dawid Lisicki,Ewelina Pabich,Beata Orlinska 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.110 No.-

        Adipic acid is the most important of the commercially available aliphatic dicarboxylic acids. It is obtainedindustrially from cyclohexanone and/or cyclohexanol by oxidation with nitric acid(V). One of the byproductsof the process is nitrous oxide, which is difficult to utilize. In this paper we propose an alternativemethod of adipic acid synthesis. In the first stage, cyclohexene is oxidized with hydrogen peroxide toepoxide, which hydrolyses to 1,2-cyclohexanediol that in the second stage is then oxidized with oxygen. From an environmental point of view, this two-stage method can offer a significant and attractive reductionof N2O production compared to the industrial methods. We apply a simple catalytic system composedof transition metal compounds and HNO3 or organic nitrites, to the second stage of adipic acidsynthesis synthesis, namely 1,2-cyclohexenediol oxidation using oxygen.

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