Name: 1-Ethyl-3-methyl-1H-imidazol-3-ium chlorideIn 2022, Hou, Qidong;Bai, Chuanyunlong;Bai, Xinyu;Qian, Hengli;Nie, Yifan;Xia, Tianliang;Lai, Ruite;Yu, Guanjie;Rehman, Mian Laiq Ur;Ju, Meiting published 《Roles of Ball Milling Pretreatment and Titanyl Sulfate in the Synthesis of 5-Hydroxymethylfurfural from Cellulose》. 《ACS Sustainable Chemistry & Engineering》published the findings. The article contains the following contents:
Production of 5-hydroxymethylfurfural (HMF) from cellulose has been expected for a long time, but most catalytic systems generally give low yield and selectivity due to the difficulty of balancing cellulose deconstruction with the uncontrollable degradation of the target product under harsh conditions. Here we show that the ball milling pretreatment could markedly facilitate the conversion of microcrystalline cellulose to HMF by titanyl sulfate (TiOSO4). The ball milling pretreatment remarkably decreases the degree of crystallinity of microcrystalline cellulose with a reduction of mol. weight via disrupting the hydrogen bond and partially breaking the β-1,4-glycosidic bond. TiOSO4 functions as both Lewis and Bronsted acid to catalyze the efficient conversion of cellulose with high HMF yield (45.4%), far exceeding that (14.1%) from untreated cellulose. The reaction pathway was revealed by liquid chromatograph-mass spectra anal. In addition, phosphorylated titanium dioxide also afforded a notable HMF yield (21.8%), showcasing the great potential of Ti-based heterogeneous catalyst.1-Ethyl-3-methyl-1H-imidazol-3-ium chloride (cas: 65039-09-0) were involved in the experimental procedure.
1-Ethyl-3-methyl-1H-imidazol-3-ium chloride(cas: 65039-09-0) is an imidazolium chloride ionic liquid that can be used as:a solvent as well as catalyst for the depolymerization of oak wood lignin; a solvent in the hydrolysis of hemicellulose (xylan) to xylose using Brønsted acid catalysts.Name: 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride
Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem