Hydrochloric acid-catalyzed coproduction of furfural and 5-(chloromethyl)furfural assisted by a phase transfer catalyst
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Date
2020
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Elsevier Ltd
Abstract
Furfural has been produced in 53% isolated yield from D-xylose within an aqueous HCl-1,2-dichloroethane biphasic reaction mixture using benzyltributylammonium chloride (BTBAC) as a phase transfer catalyst. The use of BTBAC noticeably improved the yield of furfural compared to that in the control reaction. The reaction was optimized on the reaction temperature, duration, concentration of HCl, and the loading of BTBAC. Furfural and 5-(chloromethyl)furfural (CMF) have also been coproduced from a mixture of pentose and hexose sugars. Under optimized conditions (100 °C, 3 h, 20.2% HCl, 10 wt% BTBAC), CMF and furfural were isolated in 17% and 53% yield, respectively, from a mixture of glucose and xylose. In addition, levulinic acid was isolated from the aqueous layer in 31% yield. © 2020 Elsevier Ltd
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Keywords
Aldehydes, Catalysts, Chlorine compounds, Mixtures, Benzyltributylammonium chloride, Biphasic reaction, Co-production, Isolated yield, Levulinic acid, Optimized conditions, Phase transfer catalysts, Reaction temperature, Furfural, 5 (chloromethyl)furfural, furfural, glucose, hexose, hydrochloric acid, levulinic acid, mesylic acid, pentose, phosphoric acid, sulfuric acid, trifluoroacetic acid, unclassified drug, xylose, Article, boiling point, catalyst, Fourier transform infrared spectroscopy, priority journal, proton nuclear magnetic resonance, reaction temperature, reaction time
Citation
Carbohydrate Research, 2020, 496, , pp. -