乙烯
有机化学
纤维素
单体
材料科学
半纤维素
化学
聚合物
催化作用
作者
Joseph K. Ogunjobi,Thomas J. Farmer,Con Robert McElroy,Simon W. Breeden,Duncan J. Macquarrie,David W. Thornthwaite,James H. Clark
出处
期刊:ACS Sustainable Chemistry & Engineering
[American Chemical Society]
日期:2019-04-16
卷期号:7 (9): 8183-8194
被引量:39
标识
DOI:10.1021/acssuschemeng.8b06196
摘要
Poly(ethylene terephthalate) (PET) is a ubiquitous thermoplastic currently produced from nonrenewable fossil resources; as such, sustainable biobased routes to the key terephthalate monomer are being widely pursued. Herein is demonstrated a greener solventless route to biobased diethyl terephthalate via a one-pot heterogeneous Lewis acid catalyzed Diels–Alder addition and dehydration of 2,5-furandicarboxylic acid diethyl ester with ethylene, giving yields of terephthalate up to 59% for the key Diels–Alder addition step. A metrics-based comparison against alternative published biobased routes (available from sugars, cellulose and hemicellulose) shows that the clean synthetic pathway developed herein gives a practical atom economy, overall yield and selectivity, making it a viable alternative to routes currently under development.
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