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Developing new catalytic technologies to utilize biomass as the carbon source of chemical and material industries attracts more attention than ever because of the rapid depletion of fossil feedstock and strong societal demand. This work presents the aqueous carbonylation of bioderived 5-bromofuroic acid to afford 2,5-furandicarboxylic acid in the presence of a supported palladium catalyst. The expected 2,5-furandicarboxylic acid product was isolated in >95% yield even after reusing the catalyst 10 times. This novel protocol not only provides an alternative synthetic route to 2,5-furandicarboxylic acid complementary with the tricky 5-HMF oxidation but also offers a promising market for the underexploited hemicellulose-derived furfural platform.
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Shen et al. (2019) studied this question.
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