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A catalytic aldol condensation system enables one pot conversion of biomass saccharides to biofuel intermediates
Li, Huixiang1,2; Xu, Zhanwei1; Yan, Peifang1; Zhang, Z. Conrad1
Source PublicationGREEN CHEMISTRY
2017-04-07
ISSN1463-9262
DOI10.1039/c7gc00362e
Volume19Issue:7Pages:1751-1756
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordGAMMA-VALEROLACTONE ; MALEIC-ACID ; 1-BUTYL-3-METHYLIMIDAZOLIUM CHLORIDE ; METAL CHLORIDES ; BIPHASIC SYSTEM ; LIQUID ALKANES ; LEVULINIC ACID ; PYROLYSIS OIL ; CHEMICALS ; SOLVENT
AbstractProducing bio-intermediates from lignocellulosic biomass with minimal process steps has a far-reaching impact on the biofuel industry. We studied the metal chloride catalyzed aldol condensation of furfural with acetone under conditions compatible with the upstream polysaccharide conversions to furfurals. In situ far infrared spectroscopy (FIR) was applied to guide the screening of aldol condensation catalysts based on the distinguishing characteristics of metal chlorides in their coordination chemistries with carbonyl-containing compounds. NiCl2, CoCl2, CrCl3, VCl3, FeCl3, and CuCl2 were selected as the potential catalysts in this study. The FIR results further helped to rationalize the excellent catalytic performance of VCl3 in furfural condensation with acetone, with 94.7% yield of biofuel intermediates (C8, C13) in 1-butyl-3-methylimidazolium chloride ([BMIM] Cl) solvent. Remarkably, addition of ethanol facilitated the acetal pathway of the condensation reaction, which dramatically increased the desired product selectivity over the furfural pathway. Most significantly, we demonstrate for the first time that VCl3 catalyzed aldol condensation in acidic medium is fully compatible with upstream polysaccharide hydrolysis to monosaccharide and the subsequent monosaccharide isomerization and dehydration to furfurals. Our preliminary results showed that a 44% yield of biofuel intermediates (C8, C13) can be obtained in one-pot conversion of xylose catalyzed by paired metal chlorides, CrCl2 and VCl3. A number of prior works have shown that the biofuel intermediates derived from the one-pot reaction of this work can be readily hydrogenated to biofuels.
Language英语
WOS IDWOS:000398146000024
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/169371
Collection中国科学院大连化学物理研究所
Corresponding AuthorZhang, Z. Conrad
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Dept Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Huixiang,Xu, Zhanwei,Yan, Peifang,et al. A catalytic aldol condensation system enables one pot conversion of biomass saccharides to biofuel intermediates[J]. GREEN CHEMISTRY,2017,19(7):1751-1756.
APA Li, Huixiang,Xu, Zhanwei,Yan, Peifang,&Zhang, Z. Conrad.(2017).A catalytic aldol condensation system enables one pot conversion of biomass saccharides to biofuel intermediates.GREEN CHEMISTRY,19(7),1751-1756.
MLA Li, Huixiang,et al."A catalytic aldol condensation system enables one pot conversion of biomass saccharides to biofuel intermediates".GREEN CHEMISTRY 19.7(2017):1751-1756.
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