水相和无溶剂体系中生物质基乙酰丙酸制备γ-戊内酯的研究进展

Progresses in the hydrogenation of biomass-derived levulinic acid to γ-valerolactone in aqueous and solvent-free systems

摘要:

γ-戊内酯（γ-valerolactone, GVL），是一种颇具应用潜力的生物质基平台化合物，其可通过乙酰丙酸（Levulinic acid，LA）催化加氢的方式合成。目前，研究者已针对不同的溶剂体系开发出多种催化剂用于LA选择性加氢还原制备GVL。其中，水相和无溶剂体系中催化LA加氢是最绿色经济的GVL合成途径，但上述体系对催化剂的水热稳定性和耐酸稳定性具有非常高的要求。本文着重对近年来在水相和无溶剂体系中催化LA加氢合成GVL的进展进行了归纳总结。此外，本文还分析了不同催化体系中LA加氢合成GVL的优劣势，以期为开发高效经济的GVL合成体系提供一些有益的思考与指导。

Abstract:

γ-Valerolactone (GVL) is a promising biomass platform compound that can be obtained by catalytic hydrogenation of levulinic acid (LA). At present, researchers have developed a variety of catalysts for the selective hydrogenation of LA to GVL in different solvent systems. The most favorable routes for GVL synthesis are in aqueous and solvent-free systems, where good hydrothermal stability and acid resistance of the catalysts are crucial for the efficient hydrogenation of LA. In this review, we summarized the recent advances of the synthesis of GVL from LA in aqueous and solvent-free systems. In addition, this paper also analyzed the advantages and disadvantages of different catalytic systems, to provide some useful guideline for the development of an efficient and economic GVL synthesis system.