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Au/Ag/Cu-Mixed Catalysts for the Eco-Friendly Oxidation of 5‑Hydroxymethylfurfural and Related Compounds to Carboxylic Acids under Atmospheric Oxygen in Water

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journal contribution
posted on 10.12.2020, 05:03 by Yuki Yamamoto, Miyuto Ota, Shintaro Kodama, Kazuki Michimoto, Akihiro Nomoto, Akiya Ogawa, Mitsunori Furuya, Kiminori Kawakami
A green method for the oxidation of alcohols to carboxylic acids was developed using a novel co-catalytic system based on gold, silver, and copper catalysts. This reaction system was conducted under atmospheric oxygen in water and mild conditions to selectively oxidize 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid, as a building block for polyethylene furanoate, which is a 100% bio-based, future alternative to the petroleum-based polyethylene terephthalate. Furthermore, various primary alcohols were conveniently oxidized to their corresponding carboxylic acids in up to quantitative yields.