Synthesis and Characterization of Oligomeric Ionic Liquid/Heteropoly Acid Composite as a New Heterogeneous Catalyst through Anion-Exchange Method for Selective Cyclohexane Oxidation with Molecular Oxygen under Solvent-Free Conditions

2017 ◽  
Vol 56 (38) ◽  
pp. 10597-10604 ◽  
Author(s):  
Neda Sammah ◽  
Mehran Ghiaci
Keyword(s):  
Ionic Liquid ◽  
Molecular Oxygen ◽  
Heterogeneous Catalyst ◽  
Anion Exchange ◽  
Heteropoly Acid ◽  
Synthesis And Characterization ◽  
Exchange Method ◽  
Solvent Free Conditions ◽  
Oxidation With Molecular Oxygen

Synthesis and characterization of a supported ionic-liquid phase catalyst with a dual-mesoporous structure derived from poly(ionic liquids) and P123

2019 ◽  
Vol 43 (7) ◽  
pp. 2899-2907
Author(s):  
Beibei Wang ◽  
Xiaoli Sheng ◽  
Yuming Zhou ◽  
Huaying Gao ◽  
Zhiying Zhu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Phase ◽  
Heterogeneous Catalyst ◽  
High Efficiency ◽  
Mesoporous Structure ◽  
Synthesis And Characterization ◽  
Excellent Performance ◽  
Supported Ionic Liquid

A novel heterogeneous catalyst with high efficiency and recovery shows excellent performance in the alkylation of o-xylene and styrene.

Synthesis and Characterization of a Novel Ionic Liquid Based on N,N,N,N-tetramethylethylenediamine and its Application in the Synthesis of 1,8-dioxo-octahydro Xanthenes

2018 ◽  
Vol 21 (7) ◽  
pp. 526-532 ◽  
Author(s):  
Zahra Abdi Piralghar ◽  
Mohammad Mahmoodi Hashemi ◽  
Ali Ezabadi
Keyword(s):  
Ionic Liquid ◽  
Chlorosulfonic Acid ◽  
Solvent Free ◽  
Aryl Aldehydes ◽  
Acidic Ionic Liquid ◽  
Brønsted Acidic Ionic Liquid ◽  
Solvent Free Conditions ◽  
Aryl Aldehyde ◽  
High Yields

Aim and Objective: In this work, we synthesized and characterized a novel Brönsted acidic ionic liquid from the reaction of N, N, N’, N’-tetramethylethylenediamine with chlorosulfonic acid and explored its catalytic activity in 1, 8-dioxo-octahydroxanthenes synthesis. Materials and Methods: Dimedone, aryl aldehydes, and the ionic liquid as the catalyst were reacted under solvent-free conditions. The progressive of the reaction was monitored by a thin layer of chromatography (ethyl acetate/n-hexane = 1/5). All products were characterized as the basis of their spectra data and melting point by comparison with those reported in the literature. Results: The prepared ionic liquid was successfully applied in the synthesis of 1, 8-dioxooctahydroxanthenes in good to high yields on the reaction of aryl aldehyde and dimedone at 120oC under solvent-free conditions. Conclusion: This research demonstrates that the catalyst is impressive for 1, 8-dioxo-octahydroxanthenes synthesis under solvent-free conditions.

Visible-light-responsive lanthanide coordination polymers for highly efficient photocatalytic aerobic oxidation of amines and thiols

2021 ◽  
Author(s):  
Zhifen Guo ◽  
Xin Liu ◽  
Yan Che ◽  
Hongzhu Xing ◽  
Peng Chen
Keyword(s):  
Visible Light ◽  
Molecular Oxygen ◽  
Coordination Polymers ◽  
Aerobic Oxidation ◽  
Synthesis And Characterization ◽  
Lanthanide Coordination Polymers ◽  
Highly Efficient ◽  
Photocatalytic Reactions ◽  
Energy Issues

Development of visible-light-induced photocatalytic reactions using molecular oxygen as terminal oxidant is intriguing in view of the current environmental and energy issues. We report herein the synthesis and characterization of...

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