Transetherification of guaiacol to o-ethoxyphenol with gamma Al2O3 as a catalyst in supercritical ethanol

被引:22
作者
Yang, Le [1 ,2 ]
Seshan, K. [3 ]
Li, Yongdan [1 ,2 ]
机构
[1] Tianjin Univ, Sch Chem Engn, Tianjin Key Lab Appl Catalysis Sci & Technol, Tianjin 300072, Peoples R China
[2] Tianjin Univ, Sch Chem Engn, State Key Lab Chem Engn, Tianjin 300072, Peoples R China
[3] Univ Twente, Fac Sci & Technol, NL-7500 AE Enschede, Netherlands
关键词
Transetherification; Supercritical ethanol; Guaiacol; Ethoxyphenol; Lignin model compound; ALKYLATION; ETHERS; LIGNIN;
D O I
10.1016/j.catcom.2012.10.017
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The production of chemicals from lignin and lignin depolymerisation products is a promising alternative route to replace fossil fuels. Transetherification of guaiacol, a lignin derived model compound, to o-ethoxyphenol with gamma-Al2O3 as the catalyst in supercritical ethanol has been investigated. The best reaction condition is 280 degrees C for 3 h, giving a yield of 42% with a selectivity of 86%. A reaction pathway is also proposed. Besides, this work provides an example for producing a longer chain ether from a short chain ether. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:36 / 39
页数:4
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