Ionic liquids are an attractive class of solvents for biomass conversion processes. The same properties that make them advantageous—high polarity, water solubility and negligible vapor pressure—hinder their recovery from carbohydrates. We report on the synthesis of seven fluorous imidazolium chloride ionic liquids and on their ability to dissolve cellulose. One of these ionic liquids, 3-methyl-1-(2′,2′,3′,3′,3′-pentafluoropropyl)-imidazolium chloride, dissolves cellulose. We found this fluorous ionic liquid to be suitable for use in cellulose hydrolysis reactions, and we achieved its recovery from glucose.
离子液体是
生物质转化过程中一类有吸引力的溶剂。使它们具有优势的相同特性——高极性、
水溶性和可忽略的蒸气压——阻碍了它们从
碳水化合物中的回收。我们报告了七种
氟代
咪唑氯化物
离子液体的合成及其溶解
纤维素的能力。这些
离子液体之一,3-甲基-1-(2',2',3',3',3'-五
氟丙基)-
氯化
咪唑鎓,可溶解
纤维素。我们发现这种含
氟离子液体适用于
纤维素水解反应,并且我们实现了从
葡萄糖中回收它。