Conversion of Carbohydrates into Platform Chemicals Catalyzed by Alkaline Ionic Liquids
AbstractA series of alkaline ionic liquids (ILs) including 1-butyl-3-methylimidazolium benzoate ([BMIM]PHCOO), 1-butyl-3-methylimidazolium carbonate ([BMIM]2CO3), 1-butyl-3-methylimidazolium acetate ([BMIM]OAc), 1-butyl-3-methylimidazolium hydroxide ([BMIM]OH), ethanolamine tetrafluoroborate ([MEA]BF4), and 1,1,3,3-tetramethylguanidine (TMG)-based ILs, etc., were synthesized and utilized as catalysts for the conversion of carbohydrates into 5-HMF. 1,1,3,3-tetramethylguanidine tetrafluoroborate ([TMG]BF4) was confirmed to exhibit excellent catalytic activity, and was much cheaper than other ILs such as 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) for use as a solvent in the conversion of C6 carbohydrates into 5-HMF. The 5-HMF yields from fructose, glucose, cellobiose, and microcrystalline cellulose (MCC) were 74.19%, 27.33%, 20.20%, and 17.73%, respectively. In addition, the possible pathway of carbohydrates (MCC, cellobiose, glucose, etc.) conversion into 5-HMF with [TMG]BF4 as a catalyst was speculated, and the conversion of glucose into 5-HMF was determined to likely be the committed step in the transformation of MCC catalyzed by [TMG]BF4. View Full-Text
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Du, X.; Zhang, J.; Wang, Y.; Qu, Y. Conversion of Carbohydrates into Platform Chemicals Catalyzed by Alkaline Ionic Liquids. Catalysts 2017, 7, 245.
Du X, Zhang J, Wang Y, Qu Y. Conversion of Carbohydrates into Platform Chemicals Catalyzed by Alkaline Ionic Liquids. Catalysts. 2017; 7(9):245.Chicago/Turabian Style
Du, Xiaojia; Zhang, Jie; Wang, Yuehai; Qu, Yongshui. 2017. "Conversion of Carbohydrates into Platform Chemicals Catalyzed by Alkaline Ionic Liquids." Catalysts 7, no. 9: 245.
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