A tunable precious metal-free system for selective oxidative esterification of biobased 5-(hydroxymethyl)furfural
作者:Kirill S. Kozlov、Leonid V. Romashov、Valentine P. Ananikov
DOI:10.1039/c9gc00840c
日期:——
Oxidative esterification of biomass-derived 5-(hydroxymethyl) furfural (HMF) and furfural and their derivatives has been performed using a simple MnO2/NaCN system. The developed method allows the selective one-pot transformation of HMF to dimethyl furan-2,5-dicarboxylate (FDME) in 83% isolated yield without the formation of a free acid. Simplification of FDME production provides the missing link for
生物质衍生的5-(羟甲基)糠醛(HMF)和糠醛及其衍生物的氧化酯化反应已经使用简单的MnO 2 / NaCN系统进行了。所开发的方法可以将HMF选择性地一锅转化为呋喃2,5-二羧酸二甲酯(FDME),分离出的收率为83%,而不会形成游离酸。FDME生产的简化为利用生物质制造可持续增值材料提供了缺失的环节。将水添加到氧化系统中可对反应选择性进行微调,从而无需色谱分离即可直接从未经保护的HMF中一步获得先前难以获得的纯5-(羟甲基)呋喃-2-甲酸甲酯。