This paper investigated preparation of 2,5-furandicarboxylic acid (FDCA), a valuable platform chemical compound used in various applications, from fructose via a “one-pot and two-step” method catalyzed by biotar-derived porous functional catalysts in a single dimethyl sulfoxide solvent. In the first step, fructose dehydration, when catalyzed by a biotar-derived sulfonic solid acid catalyst, yielded an impressive 83.5% yield of hydroxymethylfurfural (HMF) as a major intermediate product under the reaction conditions of 150 °C and for 30 min, which was benefited from the successful acid functionalization of the catalyst by decoration of acid sites. To further advance the FDCA production in the second step, another biotar-derived nitrogen and Pt–Pd bimetal-doped carbon catalyst was employed for subsequent oxidation of HMF using tert-butyl hydroperoxide (tBuOOH) as the oxidant at 120 °C for 20 h. Due to the effective nitrogen doping and synergistic catalysis of the bimetallic catalyst, a 60.1% FDCA yield can be achieved in alkaline-free conditions throughout the process. This research provides valuable insights into the development of efficient and sustainable methods for FDCA synthesis, demonstrating the potential for greener and more cost-effective production processes in the future.

中文翻译：

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采用生物焦油衍生功能催化剂“一锅两步”法从果糖合成 2,5-呋喃二甲酸


本文研究了通过生物焦衍生的多孔功能催化剂催化的“一锅两步”方法从果糖制备 2,5-呋喃二甲酸（FDCA），这是一种用于多种应用的有价值的平台化合物。二甲亚砜溶剂。第一步，果糖脱水，在生物焦衍生的磺酸固体酸催化剂的催化下，在150°C和30分钟的反应条件下，产生了令人印象深刻的83.5%的羟甲基糠醛（HMF）作为主要中间产物，这受益于通过酸位点修饰对催化剂进行成功的酸官能化。为了进一步推进第二步中的 FDCA 生产，采用另一种生物焦油衍生的氮和 Pt-Pd 双金属掺杂碳催化剂，使用叔丁基过氧化氢 (tBuOOH) 作为氧化剂在 120 °C 下氧化 HMF 20 小时。由于双金属催化剂的有效氮掺杂和协同催化作用，整个过程在无碱条件下可以获得60.1%的FDCA产率。这项研究为开发高效且可持续的 FDCA 合成方法提供了宝贵的见解，展示了未来更环保、更具成本效益的生产工艺的潜力。