The selective oxidation of 2,5-bis(hydroxymethyl)furan (BHMF) in this work was proven as a promising route to produce 2,5-furandicarboxylic acid (FDCA), an emerging bio-based building-block with wide application. Under ambient pressure, the modified carbon nanotube-supported Pd-based catalysts demonstrate the maximum FDCA yield of 93.0% with a full conversion of BHMF after 60 min at 60 °C, much superior to that of the traditional route using 5-hydroxymethylfurfural (HMF) as substrates (only a yield of 35.7%). The participation of PdH_x active species with metallic Pd can be responsible for the encouraging performance. Meanwhile, a possible reaction pathway proceeding through 2,5-diformylfuran (DFF) and 5-formyl-2-furancarboxylic acid (FFCA) as process intermediates is suggested for BHMF route. The present work may provide new opportunities to synthesize other high value-added oxygenates by using BHMF as an alternative feedstock.

在这项工作中，2,5-双（羟甲基）呋喃（BHMF）的选择性氧化被证明是生产 2,5-呋喃二甲酸（FDCA）的有前途的途径，2,5-呋喃二甲酸（FDCA）是一种具有广泛应用的新兴生物基构件。在环境压力下，改性碳纳米管负载的 Pd 基催化剂在 60 ℃ 60 分钟后完全转化 BHMF 的 FDCA 产率达到 93.0%，远优于使用 5-羟甲基糠醛 (HMF) 的传统路线。 ) 作为底物（只有 35.7% 的产率）。PdH _x的参与具有金属钯的活性物质可能是令人鼓舞的表现。同时，为BHMF路线提出了以2,5-二甲酰基呋喃（DFF）和5-甲酰基-2-呋喃羧酸（FFCA）为中间体的可能反应途径。目前的工作可能为通过使用 BHMF 作为替代原料合成其他高附加值的含氧化合物提供新的机会。