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Hybrid catalysis, which combines chemo‐ and biocatalytic benefits, is an efficient way to address green chemistry principles. 5‐Hydroxymethylfurfural (HMF) is a versatile building block in numerous industrial applications. To date, few studies have described the production of its amine derivatives and their polymers. Finding a good methodology to directly transform HMF to 5‐aminomethyl‐2‐furancarboxylic acid (AMFC) therefore represents an important challenge. After selecting the best oxidation catalyst for HMF conversion to 5‐aldehyde‐2‐furancarboxylic acid and immobilizing a transaminase onto a solid carrier, we implemented the first one‐pot/two‐steps hybrid catalytic process to produce AMFC (77 % yield); this is the most efficient AMFC catalytic production method from HMF reported to date. This process also produced 2,5‐furandicarboxylic acid (21 % yield) as a major secondary product that can be applied to polymer syntheses such as polyethylene furanoate. Herein, we report a novel way to access new biosourced polymers based on HMF oxidized and aminated derivatives. [ABSTRACT FROM AUTHOR]

Keywords: 5-aminomethyl-2-furancarboxylic acid; 5-hydroxymethylfurfural; biocatalysis; enzyme catalysis; heterogeneous catalysis; hybrid catalysis; platinum; transaminase EN 5-aminomethyl-2-furancarboxylic acid 5-hydroxymethylfurfural biocatalysis enzyme catalysis heterogeneous catalysis hybrid catalysis platinum transaminase 5 5 1 01/18/21 20210112 NES 210112 B The Cover Feature b shows that hybrid catalysis is a very promising concept that combines chemical catalysts and biocatalysts in one-pot processes. In their Full Paper, A. Lancien et al. report a transaminase coupled to a platinum nanoparticle, both supported on silica, for the efficient conversion of I 5 i -hydroxymethylfurfural into I 5 i -aminomethyl- I 2 i -furancarboxylic acid. 5-aminomethyl-2-furancarboxylic acid, 5-hydroxymethylfurfural, biocatalysis, enzyme catalysis, heterogeneous catalysis, hybrid catalysis, platinum, transaminase. [Extracted from the article]