Siankevich Sviatlana, Fei Zhaofu, Scopelliti Rosario, Jessop Philip G, Zhang Jiaguang, Yan Ning, Dyson Paul J
Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015, Lausanne, Switzerland.
Department of Chemistry, Queen's University, Kingston, Ontario, K7 L 3N6, Canada.
ChemSusChem. 2016 Aug 23;9(16):2089-96. doi: 10.1002/cssc.201600313. Epub 2016 Jun 27.
Platform chemicals are usually derived from petrochemical feedstocks. A sustainable alternative commences with lignocellulosic biomass, a renewable feedstock, but one that is highly challenging to process. Ionic liquids (ILs) are able to solubilize biomass and, in the presence of catalysts, convert the biomass into useful platform chemicals. Herein, we demonstrate that mixtures of ILs are powerful systems for the selective catalytic transformation of cellulose into 5-hydroxymethylfurfural (HMF). Combining ILs with continuous HMF extraction into methyl-isobutyl ketone or 1,2-dimethoxyethane, which form a biphase with the IL mixture, allows the online separation of HMF in high yield. This one-step process is operated under relatively mild conditions and represents a significant step forward towards sustainable HMF production.
平台化学品通常源自石化原料。一种可持续的替代方案始于木质纤维素生物质，这是一种可再生原料，但加工起来极具挑战性。离子液体（ILs）能够溶解生物质，并在催化剂存在的情况下将生物质转化为有用的平台化学品。在此，我们证明离子液体混合物是将纤维素选择性催化转化为5-羟甲基糠醛（HMF）的强大体系。将离子液体与连续萃取HMF到甲基异丁基酮或1,2-二甲氧基乙烷中相结合，后者与离子液体混合物形成双相，能够以高产率在线分离HMF。这一步骤在相对温和的条件下进行，代表了可持续生产HMF的重要进展。
