The projections of ionic liquids as green solvents in chemical processes have increased in recent years. Ionic liquid is a versatile chemical with various applications. The aim of this review is to present a comprehensive perspective of ionic liquid for processing carbohydrate biomass by considering the recent progress in this field. Special attention is given to the application of ionic liquids for the production of 5-hydroxymethyl furfural (5-HMF) and levulinic acid (LA). Factors affecting the catalytic conversion of carbohydrate biomass in ionic liquid and the mechanisms of 5-HMF and LA production are also presented. In addition, the recyclability of the ionic liquid for carbohydrate biomass processing is discussed. The viewpoint for the application of functionalized ionic liquid as potential green solvent and catalyst is also highlighted. Future studies pertinent to carbohydrate biomass conversion in ionic liquids to 5-HMF and LA could use this review for selecting the appropriate reaction conditions required to achieve their specific goals. Besides, combination of technologies from ionic liquids and biomass processing strategies for the production of various fuels and value-added chemicals can be comprehended for applications in a lignocellulosic biorefinery.

中文翻译：

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离子液体中糖类生物质催化转化为5-羟甲基糠醛和乙酰丙酸的研究进展

近年来，离子液体在化学过程中作为绿色溶剂的预测有所增加。离子液体是一种用途广泛的通用化学品。这篇综述的目的是通过考虑该领域的最新进展来介绍用于处理碳水化合物生物质的离子液体的全面观点。特别注意离子液体在生产5-羟甲基糠醛（5-HMF）和乙酰丙酸（LA）中的应用。还介绍了影响离子液体中碳水化合物生物质催化转化的因素以及5-HMF和LA生成的机理。另外，讨论了用于碳水化合物生物质加工的离子液体的可回收性。还强调了将官能化离子液体用作潜在绿色溶剂和催化剂的观点。与将离子液体中的碳水化合物生物质转化为5-HMF和LA有关的未来研究可以使用本综述来选择实现其特定目标所需的适​​当反应条件。此外，可以理解将离子液体的技术与生物质加工策略相结合以生产各种燃料和增值化学品，以用于木质纤维素生物精炼厂。