A catalytic oxidative valorization of biomass-derived furfural with ethanol by copper/azodicarboxylate system

被引：19
作者：
Cui, Hongge [1 ]
Tong, Xinli [1 ]
Yu, Linhao [1 ]
Zhang, Ming [1 ]
Yan, Yongtao [1 ]
Zhuang, Xuli [1 ]
机构：
[1] Tianjin Univ Technol, Sch Chem & Chem Engn, Tianjin Key Lab Organ Solar Cells & Photochem Con, Tianjin 300384, Peoples R China
来源：
CATALYSIS TODAY | 2019年 / 319卷
基金：
中国国家自然科学基金;
关键词：
Furfural; Oxidative condensation; Azodicarboxylate; Ethanol; Biomass transformation; MOLECULAR-OXYGEN; AEROBIC OXIDATION; ALIPHATIC-ALCOHOLS; EFFICIENT; CHEMICALS; CONVERSION; FUELS; ESTERIFICATION; CONDENSATION;
D O I：
10.1016/j.cattod.2018.03.050
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
An efficient tandem process for the oxidative condensation of furfural (FUR) with ethanol catalyzed by the copper/azodicarboxylate system has been developed. Firstly, the hydrogen transferring between FUR and ethanol is investigated under the nitrogen atmosphere by combining the azodicarboxylate and alkali carbonates, in which the main products are furfuryl alcohol and furan-2-acrolein. In the following, the cuprous halides and molecular oxygen are supplemented into the reaction system in order to improve the yield of furan-2-acrolein; therein, it is found that furfuryl alcohol is further oxidized and the selectivity of furan-2-acrolein is obviously elevated when CuI and o-phenanthroline (Phen) are used as the co-catalysts. Under optimal reaction conditions, 82.5% conversion of FUR with 87.7% selectivity of furan-2-acrolein is obtained with the assistance of diethyl azodicarboxylate (DEAD) and potassium carbonate. At last, a possible catalytic mechanism is proposed for the oxidative condensation reaction between FUR and ethanol in the presence of O-2.
引用
收藏
页码：100 / 104
页数：5
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