Tailoring ionic liquid catalysts: structure, acidity and catalytic activity of protonic ionic liquids based on anionic clusters, [(HSO4)(H2SO4)x]− (x = 0, 1, or 2)
Tailoring ionic liquid catalysts: structure, acidity and catalytic activity of protonic ionic liquids based on anionic clusters, [(HSO<sub>4</sub>)(H<sub>2</sub>SO<sub>4</sub>)<sub>x</sub>]<sup>−</sup> (x = 0, 1, or 2)
作者:Karolina Matuszek、Anna Chrobok、Fergal Coleman、Kenneth R. Seddon、Małgorzata Swadźba-Kwaśny
DOI:10.1039/c4gc00415a
日期:——
The speciation of a family of inexpensive, easily prepared protonic ionic liquids, their physico-chemical properties and their performance as catalysts in the model esterification reaction have been correlated.
[EN] SYNTHESIS OF LACTIC ACID AND ALKYL LACTATE FROM CARBOHYDRATE-CONTAINING MATERIALS<br/>[FR] SYNTHÈSE D'ACIDE LACTIQUE ET DE LACTATE D'ALKYLE À PARTIR DE MATIÈRES À TENEUR EN GLUCIDES
申请人:MICROVAST INC
公开号:WO2012065002A1
公开(公告)日:2012-05-18
A method of synthesizing lactic acid and lactate is invented from carbohydrates, such as monosaccharides and/or polysaccharides in the presence of the catalyst that is the combinations of nitrogen-heterocycle aromatic ring cation salts and metal compounds. In the reaction, at least one alcohol and one solvent are used. Specifically, in the presence of [SnCl4-l-ethyl-3-methylimidazolium chloride ([EMIM] CI)], [SnCl4-l, 3-dimethylimidazolium methyl sulfate ([DMIM] CH3SO4)], [SnCl2-l-ethyl-3-methylimidazolium chloride ([EMIM] CI)], or [SnCl2-l, 3-dimethylimidazolium methyl sulfate ([DMIM] CH3S04)] in methanol.
Facile synthesis of fructone from ethyl acetoacetate and ethylene glycol catalyzed by SO3H-functionalized Brønsted acidic ionic liquids
作者:Yong Liu、Yi-Tao Wang、Tao Liu、Duan-Jian Tao
DOI:10.1039/c4ra01708k
日期:——
SO3H-functionalized Brønsted acidic ionicliquids (BAILs) were synthesized and utilized as highly efficient catalysts for the production of fructone via the acetalization reaction of ethyl acetoacetate with ethylene glycol. In comparison with conventional H2SO4 and cation exchange resins, the BAILs N-(4-sulfonic acid) butyl triethylammonium hydrogensulfate ([BSEt3N][HSO4]) of strongacidities exhibited excellent