Eucalyptus globulus (E. globulus) wood samples were treated in media containing acidified water and methyl isobutyl ketone (MIBK) in order to achieve the one-pot conversion of the hemicellulosic and cellulosic fractions into furfural and levulinic and formic and acetic acids, respectively. The reactions were performed under diverse operational conditions (180 or 190 °C, reaction times up to 70 min, liquid-to-solid ratios of 10 or 20 g aqueous phase/g wood, sulfuric acid concentrations of 0.5 or 1 g/100 g aqueous phase). Near-quantitative molar conversion of pentosans into furfural was achieved under conditions leading to limited generation of organic acids. In one-pot experiments performed under selected conditions, the overall yield of furfural and organic acids reached 45.2 g/100 g of wood. MIBK-soluble lignin was recovered from the organic phase by water precipitation at a yield of 17.4 g/100 g of wood, defining an effective method for the simultaneous delignification and polysaccharide conversion of E. globulus wood. The recovered lignin was characterized for structure (using pyrolysis–gas chromatography–mass spectrometry and heteronuclear single quantum coherence) and molar mass distribution.

中文翻译：

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微波加热一锅桉球木材：同时脱木素和多糖转化为平台化学品

蓝桉（ē。蓝桉木材样品在含有酸化水和甲基异丁基酮（MIBK）的介质中进行处理，以实现半纤维素和纤维素级分分别转化为糠醛和乙酰丙酸，甲酸和乙酸的一锅法转换。反应在不同的操作条件下（180或190°C，反应时间长达70分钟，液/固比为10或20 g水相/ g木材，硫酸浓度为0.5或1 g / 100 g）进行水相）。戊聚糖向糠醛的近定量摩尔转化是在导致有机酸生成受限的条件下实现的。在选定条件下进行的一锅实验中，糠醛和有机酸的总产量达到45.2 g / 100 g木材。E.globulus木头。回收的木质素的特征在于结构（使用热解-气相色谱-质谱法和异核单量子相干）和摩尔质量分布。