During latest years, significant research efforts have been focused on the conversion of biomass into platform chemicals and biofuels. For instance, 5-hydroxymethyl-2-furancarboxylic acid derived from the selective oxidation of the aldehyde moiety of 5-hydroxymethylfurfural serves as a monomer for the synthesis of various polyesters, but also shows antitumor activity. Much more research interest has been devoted to the synthesis of 2,5-furandicarboxylic acid considered as an alternative monomer for the replacement of terephthalic acid. The aim of this study is the environmentally friendly synthesis of 5-hydroxymethyl-2-furancarboxylic acid and 2,5-furandicarboxylic acid through heterogeneously catalyzed reactions working in water under mild conditions. In order to design a truly sustainable process, biomass derived HMF raw liquors must be employed. The direct use of the raw hydrolysis solution avoids complex, expensive and inefficient HMFpurification processes, adjourning them to the refinement of the final product. Therefore, the novel catalysts here proposed were also tested in a cascade process of biomass valorization using raw hydrolysates derived from cellulose. Quite good results were obtained, highlighting the robustness of the new catalysts and the high feasibility of this cascade approach.

Novel palladium magnetic catalysts for 5-hydroxymethylfurfural oxidation

Hilda Gómez Bernal;Tiziana Funaioli;Elisa Bertolucci;Claudia Antonetti;Anna Maria Raspolli Galletti
2017-01-01

Abstract

During latest years, significant research efforts have been focused on the conversion of biomass into platform chemicals and biofuels. For instance, 5-hydroxymethyl-2-furancarboxylic acid derived from the selective oxidation of the aldehyde moiety of 5-hydroxymethylfurfural serves as a monomer for the synthesis of various polyesters, but also shows antitumor activity. Much more research interest has been devoted to the synthesis of 2,5-furandicarboxylic acid considered as an alternative monomer for the replacement of terephthalic acid. The aim of this study is the environmentally friendly synthesis of 5-hydroxymethyl-2-furancarboxylic acid and 2,5-furandicarboxylic acid through heterogeneously catalyzed reactions working in water under mild conditions. In order to design a truly sustainable process, biomass derived HMF raw liquors must be employed. The direct use of the raw hydrolysis solution avoids complex, expensive and inefficient HMFpurification processes, adjourning them to the refinement of the final product. Therefore, the novel catalysts here proposed were also tested in a cascade process of biomass valorization using raw hydrolysates derived from cellulose. Quite good results were obtained, highlighting the robustness of the new catalysts and the high feasibility of this cascade approach.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/997539
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