Choline peroxydisulfate oxidizing Bio-TSIL: triple role player in the one-pot synthesis of Betti bases and gem-bisamides from aryl alcohols under solvent-free conditions
One-Pot Synthesis of 3,4-Dihydro-2(H)-Pyrimidinones Catalyzed by Reusable Acidic Choline-Based Ionic Liquids
作者:Anlian Zhu、Qianqian Li、Lingjun Li、Jianji Wang
DOI:10.1007/s10562-013-0978-6
日期:2013.5
A series of choline-basedionicliquids (CIL) have been synthesized in this work. The results suggested that both the cations and the anions have significant influences on their properties such as thermostabilities, acidities and their performances for the synthesis of 3,4-dihydro-2(H)-pyrimidinones. The optimized catalytic system based on the CIL [DMEA][HSO4] for the Biginelli reactions benefits from
Cleaner enzymatic production of biodiesel with easy separation procedures triggered by a biocompatible hydrophilic ionic liquid
作者:Anlian Zhu、Wanlu Feng、Zhiyong Li、Shuang Cheng、Qianhan Chen、Dongshuang Fan、Yuanyang Guo、Lingjun Li、Jianji Wang
DOI:10.1039/c9gc03796a
日期:——
A biocompatible and hydrophilic ionic liquid was found to efficiently promote the enzymatic production of biodiesel with excellent yields from different oil resources.
一种生物相容性和亲水性离子液体被发现能够有效促进不同油资源的酶促生物柴油生产,产率优异。
Degradation of poly(ethylene terephthalate) catalyzed by metal-free choline-based ionic liquids
permanent loop recycling. However, most of the reported glycolysis catalysts are metal-based, leading to high cost and negative environmental impact. In this study, we developed a series of choline-basedionicliquids (ILs) without metals and applied them in the glycolysis of PET as catalysts. Choline acetate ([Ch][OAc]), which is cheaper, more biologically compatible and environmentally friendly in comparison
聚对苯二甲酸乙二醇酯(PET)的糖酵解是将PET降解为其单体对苯二甲酸双(羟乙基)对苯二酸酯(BHET)的潜在途径,可以再次聚合形成新的合格PET材料,因此为永久循环回收提供了可能性。然而,大多数报道的糖酵解催化剂是金属基的,导致高成本和负面的环境影响。在这项研究中,我们开发了一系列不含金属的基于胆碱的离子液体(IL),并将其应用于PET的糖酵解中作为催化剂。醋酸胆碱([Ch] [OAc])与传统的咪唑金属基离子液体相比便宜,更具生物相容性且对环境友好,其性能可与之媲美甚至更好。在最佳条件下(PET(5.0克),乙二醇(EG)(20.0克),[Ch] [OAc](5 wt%),180°C,4 h,大气压),BHET的产率高达85.2%。此外,研究了反应动力学,并证明是收缩核模型。表观活化能为131.31 kJ mol-1,且指数前因子为1.21×10 13 min -1。最后,基于实验结果
An Efficient Catalytic System Based on CuI and Ionic Liquid for the Synthesis of Propargylamines Through One-Pot A3 Coupling Reactions
作者:Anlian Zhu、Jingyi Wang、Mingyue Wang、Dongshuang Fan、Lingjun Li
DOI:10.1007/s10562-022-04109-w
日期:——
mild reaction conditions and simple operation procedures, no volatile organic solvents and other additives were involved, and no inert gas protection were needed. In addition, the ionicliquid utilized in this work was easy to be prepared and its utilization made the catalytic system recyclable. All of these superiorities made this catalytic system efficient and eco-friendly for the synthesis of propargylamines
合成了一系列离子液体,并研究了它们对 Cu 催化的一锅法 A 3偶联反应合成炔丙胺的协同作用。结果表明,基于离子液体[MEA][H 2 PO 4的复合催化体系]和CuI对目标炔丙胺具有优异的催化活性和选择性,一系列具有吸电和给电基团的芳香醛和杂芳醛均能达到良好至优异的分离产率。该催化体系反应条件温和,操作程序简单,不涉及挥发性有机溶剂和其他添加剂,也不需要惰性气体保护。此外,该工作中使用的离子液体易于制备,其利用使催化体系可回收。所有这些优势使得该催化体系高效且环保地用于炔丙胺的合成。 图形概要
Acidity Tunable Ionic Liquids as Catalysts for Conversion of Agar into Mixed Sugars
作者:Churl Kim、Hyun-Jin Ryu、Sang-Hyoun Kim、Jeong-Jun Yoon、Hoon-Sik Kim、Yong-Jin Kim