Aerobic oxidative esterification of 5-hydroxymethylfurfural to dimethyl furan-2,5-dicarboxylate by using homogeneous and heterogeneous PdCoBi/C catalysts under atmospheric oxygen,Green Chemistry

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Aerobic oxidative esterification of 5-hydroxymethylfurfural to dimethyl furan-2,5-dicarboxylate by using homogeneous and heterogeneous PdCoBi/C catalysts under atmospheric oxygen
Green Chemistry ( IF 9.3 ) Pub Date : 2018-06-06 , DOI: 10.1039/c8gc01393d
Feng Li _{1,

2,

3,

4,

5} , Xing-Long Li _{1,

2,

3,

4,

5} , Chuang Li _{1,

2,

3,

4,

5} , Jing Shi _{1,

2,

3,

4,

5} , Yao Fu _{1,

2,

3,

4,

5}

Affiliation

The conversion of platform molecule 5-hydroxymethylfurfural (HMF) into many value-added derivatives has attracted significant interest. FDCA and its esters are important derivatives of HMF, which can be used as polyester monomers and pharmaceutical intermediates. In this paper, oxidative esterification of 5-HMF has been carried out by using homogeneous and heterogeneous PdCoBi/C catalysts under atmospheric oxygen. The effect of reaction conditions on product distribution has been studied under both homogeneous and heterogeneous catalytic conditions. The highest yields of oxidative esterification products are obtained at 93% and 96% by using homogeneous and heterogeneous PdCoBi/C catalysts, respectively. The catalysts are characterized by X-ray photoelectron spectroscopy (XPS) and powder X-ray diffraction (XRD). The catalytic system has better compatibility according to the expansion of the substrate. A reaction mechanism is proposed, and recycle experiments are also conducted.

中文翻译：

在大气氧气下使用均相和非均相的PdCoBi / C催化剂将5-羟甲基糠醛有氧氧化酯化为呋喃-2,5-二羧酸二甲酯

平台分子5-羟甲基糠醛（HMF）转化为许多增值衍生物引起了人们的极大兴趣。FDCA及其酯是HMF的重要衍生物，可用作聚酯单体和医药中间体。在本文中，通过在大气氧下使用均相和非均相的PdCoBi / C催化剂进行了5-HMF的氧化酯化反应。在均相和非均相催化条件下都研究了反应条件对产物分布的影响。通过使用均相和非均相的PdCoBi / C催化剂，氧化酯化产物的最高收率分别为93％和96％。所述催化剂通过X射线光电子能谱（XPS）和粉末X射线衍射（XRD）来表征。根据底物的膨胀，催化体系具有更好的相容性。提出了一种反应机理，并进行了循环实验。

更新日期：2018-07-02

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