期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 17, 期 44, 页码 12452-12457出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201101580
关键词
biomass; Diels-Alder reactions; polyethylene terephthalate; sustainable chemistry
资金
- British Petroleum through the Energy Biosciences Institute
- Ito Foundation
- Dow Sustainability Innovation Student Challenge Award
Polyethylene terephthalate (PET) is a polymeric material with high global demand. Conventionally, PET is produced from fossil-fuel-based materials. Herein, we explored the feasibility of a sustainable method for PET production by using solely bio-renewable resources. Specifically, 2,5-dimethylfuran (derived from lignocellulosic biomass through 5-(hydroxymethyl) furfural) and acrolein (produced from glycerol, a side product of biodiesel production) were converted into the key intermediate p-xylene (a precursor of terephthalic acid). This synthesis consists of a sequential Diels-Alder reaction, oxidation, dehydration, and decarboxylation. In particular, the pivotal first step, the Diels-Alder reaction, was studied in detail to provide useful kinetic and thermodynamic data. Although it was found that this reaction requires low temperature to proceed efficiently, which presents a limitation on economic feasibility on an industrial scale, the concept was realized and bio-derived p-xylene was obtained in 34% overall yield over four steps.
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