Advances in selective catalytic transformation of ployols to value-added chemicals

In this review, we discuss recent progress in the catalytic transformation of polyols to value-added chemicals, including 5-hydroxymethylfurfural (HMF), ethylene glycol (EG), 1,2-propylene glycol (1,2-PG) and 1,3-propylene glycol (1,3-PG). The challenges and solving of the synthesis of HMF from different carbohydrates, such as fructose, glucose and cellulose are analyzed. For the conversion of HMF, we focus on the catalytic oxidation of HMF to 2,5-diformylfuran and 2,5-furandicarboxylic acid and their applications to polymers. Advances in the catalytic hydrogenolysis of polyols including cellulose, sugar alcohols and glycerol to diols such as EG, 1,2-PG and 1,3-PG are reviewed, and the reaction mechanisms were discussed. Research topics are suggested for future research from this review on the selective catalytic transformation of ployols to value-added chemicals.

摘要对近年来催化转化多羟基化合物制备5-羟甲基糠醛、乙二醇、1,2-丙二醇、1,3-丙二醇等高附加值化学品进行了综述. 分析了果糖、葡萄糖、纤维素等不同结构的碳水化合物制5-羟甲基糠醛存在的挑战, 并对相应的解决方法进行了总结. 对于5-羟甲基糠醛的转化, 我们重点讨论了5-羟甲基糠醛选择性氧化制备2,5-二甲酰基呋喃和2,5-呋喃二甲酸以及它们作为聚合单体的潜在应用. 概述了催化氢解纤维素、糖醇、甘油等多羟基化合物制备乙二醇、1,2-丙二醇、1,3-丙二醇等二元醇的方法, 并对可能的机理进行了讨论. 依据近年来多羟基化合物催化选择性转化制备高附加值化学品的研究现状, 对今后的研究热点进行了展望.

Graphical AbstractThe synthesis of selected value-added chemicals from polyols by dehydration and hydrogenolysis methods is reviewed.Figure optionsDownload as PowerPoint slide