Faculty of Chemistry, University of Science, 227 Nguyen Van Cu, Dist. 5, Ho Chi Minh 700000, Vietnam.
Faculty of Chemistry, Vietnam National University of Hochiminh City, Ho Chi Minh 700000, Vietnam.
Molecules. 2022 Mar 2;27(5):1644. doi: 10.3390/molecules27051644.
Chloroaluminate ionic liquid bound on magnetic nanoparticles (FeO@OSi[PrMIM]Cl·AlCl) was prepared and used as a heterogenous Lewis acidic catalyst for the Friedel-Crafts sulfonylation of aromatic compounds with sulfonyl chlorides or -toluenesulfonic anhydride. The catalyst's stability, efficiency, easy recovery, and high recyclability without considerable loss of catalytic capability after four recycles were evidence of its advantages. Furthermore, the stoichiometry, wide substrate scope, short reaction time, high yield of sulfones, and solvent-free reaction condition also made this procedure practical, ecofriendly, and economical.
氯铝酸离子液体固载在磁性纳米粒子上（FeO@OSi[PrMIM]Cl·AlCl），被制备并用作非均相路易斯酸性催化剂，用于芳族化合物与磺酰氯或对甲苯磺酸酐的 Friedel-Crafts 磺酰化反应。该催化剂具有稳定性、高效率、易于回收、高可循环性等优点，在经过四次循环后，没有明显的催化能力损失。此外，该方法具有化学计量比、广泛的底物范围、较短的反应时间、高收率的砜和无溶剂的反应条件，使其具有实际应用、环境友好和经济实惠的特点。
