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  • Title: Heterogeneously-Catalyzed Aerobic Oxidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxylic Acid with MnO2.
    Author: Hayashi E, Komanoya T, Kamata K, Hara M.
    Journal: ChemSusChem; 2017 Feb 22; 10(4):654-658. PubMed ID: 27925403.
    Abstract:
    A simple non-precious-metal catalyst system based on costeffective and ubiquitously available MnO2 , NaHCO3 , and molecular oxygen was used to convert 5-hydroxymethylfurfural (HMF) to 2,5-difurandicarboxylic acid (FDCA) as a bioplastics precursor in 91 % yield. The MnO2 catalyst could be recovered by simple filtration and reused several times. The present system was also applicable to the aerobic oxidation of other biomass-derived substrates and the gram-scale oxidation of HMF to FDCA, in which 2.36 g (86 % yield) of the analytically pure FDCA could be isolated.
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