Synthesis of a 5-(Hydroxymethyl)furfural-based resin and its use as heterogeneuos catalyst
PDF

Palavras-chave

Flow chemistry
Green chemistry
Heterogenous catalysis

Como Citar

FERNANDES, Lucas; PASTRE, Julio; GALAVERNA, Renan; GOMES, Gustavo. Synthesis of a 5-(Hydroxymethyl)furfural-based resin and its use as heterogeneuos catalyst. Revista dos Trabalhos de Iniciação Científica da UNICAMP, Campinas, SP, n. 27, p. 1–1, 2019. DOI: 10.20396/revpibic2720192498. Disponível em: https://econtents.bc.unicamp.br/eventos/index.php/pibic/article/view/2498. Acesso em: 28 mar. 2024.

Resumo

The search for new chemicals and materials derived from biomass has gained more attention in the last decades, considering the increased search for the substitution of fossil-based chemicals. As far as green chemistry is concerned, it is worth mentioning the recent technological improvements in the field of organic synthesis with the adoption of enabling technologies such as continuous flow chemistry. Compared to the traditional way to do organic synthesis using round-bottomed flasks, the use of flow chemistry brings several benefits including ease scale up, multistep synthesis, and safer reactions. Bearing this in mind, this work aimed at the use of 5-(Hydroxymethyl)furfural (5-HMF) as starting material for the synthesis of new organic building blocks and materials. Firstly, 5-HMF was converted to 2,5-di(hydroxymethyl)furan (DHMF) employing NaBH4 as reducing agent. Combining DHMF and maleic anhydride for a Diels-Alder reaction, an unexpected polymerization reaction occurred, giving rise to an insoluble and amorphous material. This solid was characterized by several techniques such as 13 C NMR, FTIR, and DSC. After measuring the pH for this solid in an aqueous medium (pH 3), this material was evaluated as a heterogeneous acid catalyst. Thus, the dehydration of D-Fructose into 5-HMF was carried out in a continuous flow regime using a fixed-bed reactor and yields up to 70% were obtained.

https://doi.org/10.20396/revpibic2720192498
PDF

Referências

R. Galaverna, M. C. Breitkreitz, J. C. Pastre, ACS Sustainable Chem. Eng. 2018, 6, 4220?4230.

Todos os trabalhos são de acesso livre, sendo que a detenção dos direitos concedidos aos trabalhos são de propriedade da Revista dos Trabalhos de Iniciação Científica da UNICAMP.

Downloads

Não há dados estatísticos.