Atom-economical synthesis of gamma-valerolactone with self-supplied hydrogen from methanol

作者:Li Zheng; Tang Xing; Jiang Yetao; Wang Yanjun; Zuo Miao; Chen Wei; Zeng Xianhai*; Sun Yong; Lin Lu
来源:Chemical Communications, 2015, 51(91): 16320-16323.
DOI:10.1039/c5cc06669g

摘要

gamma-Valerolactone (GVL), a versatile biomass derived platform molecule, was synthesized with a highest yield of 89.8% from methyl levulinate (ML) using self-supplied H-2 coming from the decomposition of MeOH derived partially from ML. Cu-Cr acted as a bi-functional catalyst for both H-2 production from MeOH and carbonyl hydrogenation. An extremely low amount of MeOH (29 mol% relative to ML) was initially necessary to start up the hydrocyclization of ML to GVL and MeOH, which is in turn employed as an in situ H-2 source for ML hydrogenation, providing an atom-economical pathway for GVL production.