Insights into the Play of Novel Bronsted Acid-Based Deep Eutectic Solvents for the Conversion of Glucose into 5-Hydroxymethylfurfural without Additional Catalysts was written by Tao, Shunhui;Hu, Lei;Zhang, Xiaodong;Mai, Yinglin;Xian, Xiaoling;Zheng, Xiaojie;Lin, Xiaoqing. And the article was included in Industrial & Engineering Chemistry Research in 2022.Reference of 75-57-0 The following contents are mentioned in the article:
5-Hydroxymethylfurfural (5-HMF) is a versatile bio-platform chem. that connects biomass to a variety of different fuels, chems., and materials. In this work, novel Bronsted acid-based deep eutectic solvents (DESs) with both solvent and catalytic functionalities for glucose dehydration into 5-HMF were developed without the need of addnl. metal salt catalysts or heterogeneous catalysts. The types of hydrogen bond donor (HBD) and hydrogen bond acceptor (HBA), the ratio of HBD to HBA of the DES, heating time, reaction temperature, initial glucose concentration, and moisture content of the DES were systematically investigated to reveal the interplay of the DES in the conversion of glucose to 5-HMF. The most effective DES was found to be tri-Et benzyl ammonium chloride (TEBAC)/formic acid (FA) (molar ratio: 2:1) with a 5-HMF yield of 30.5 ± 1.0% in glucose dehydration and approx. 100% glucose conversion (initial glucose concentration: 2.5 weight %) in 60 min at 150°C. Most importantly, after five cycles, the TEBAC/FA (1:2) DES retained high stability and catalytic activity, with the yield of 5-HMF remaining 30.1 ± 0.5%. Interestingly, as the water content of the DES increased to 70%, the 5-HMF yield increased to 36.5 ± 1.0% along with an 8.01 ± 1.4% yield of levulinic acid. The finding of this study provided insights into the TEBAC/FA (1:2) DES with dual capabilities that might support more efficient bio-based commodity chem. production methods. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Reference of 75-57-0).
Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Alkyl chlorides are versatile building blocks in organic chemistry. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available.Reference of 75-57-0
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics