One-Pot Synthesis of Substituted Piperidinones and 3,4-Dihydropyrimidinones Using a Highly Active and Recyclable Supported Ionic Liquid Phase Organocatalyst

2016 ◽  
Vol 69 (2) ◽  
pp. 230 ◽  
Author(s):  
Pankaj Sharma ◽  
Manjulla Gupta ◽  
Monika Gupta ◽  
Rajive Gupta
Keyword(s):  
Electron Microscopy ◽  
Ionic Liquid ◽  
Liquid Phase ◽  
Chromatographic Purification ◽  
One Pot ◽  
Phase Form ◽  
Ethyl Sulfate ◽  
Supported Ionic Liquid ◽  
Highly Active ◽  
Transmission Electron

1-Ethyl-3-methylimidazolium ethyl sulfate was synthesized and its supported ionic liquid phase form was prepared and used as an organocatalyst for the synthesis of substituted piperidinones and 3,4-dihydropyrimidinones. The ionic liquid was characterized by 1H NMR, 13C NMR, and mass spectrometry. The catalyst is novel, stable, completely heterogeneous, and recyclable for several times and can be easily recovered by filtration. It was characterized with scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, and energy-dispersive X-ray spectroscopy techniques. The workup procedures are very simple, and products were obtained in good-to-excellent yields with reasonable purities without the need for further chromatographic purification.

One-pot synthesis of various 2-amino-4H-chromene derivatives using a highly active supported ionic liquid catalyst

RSC Advances ◽  
2016 ◽  
Vol 6 (38) ◽  
pp. 32052-32059 ◽  
Author(s):  
Pankaj Sharma ◽  
Monika Gupta ◽  
Rajni Kant ◽  
Vivek K. Gupta
Keyword(s):  
Ionic Liquid ◽  
Liquid Phase ◽  
Solvent Free ◽  
One Pot ◽  
Supported Ionic Liquid ◽  
One Pot Synthesis ◽  
Highly Active ◽  
Solvent Free Conditions

Supported ionic liquid phase catalyst was synthesized and applied for the synthesis of chromene derivatives under solvent-free conditions.

Magnetic Nanoparticle Supported Ionic Liquid Phase Catalyst for Oxidation of Alcohols

2020 ◽  
Vol 73 (11) ◽  
pp. 1088
Author(s):  
Altafhusen Naikwade ◽  
Megha Jagadale ◽  
Dolly Kale ◽  
Gajanan Rashinkar
Keyword(s):  
Ionic Liquid ◽  
Liquid Phase ◽  
Photoelectron Spectroscopy ◽  
Magnetic Nanoparticle ◽  
Analytical Techniques ◽  
X Ray ◽  
Supported Ionic Liquid ◽  
Transmission Electron ◽  
Oxidation Of Alcohols ◽  
Ft Ir

A new magnetic nanoparticle supported ionic liquid phase (SILP) catalyst containing perruthenate anions was prepared by a multistep procedure. The various analytical techniques such as FT-IR spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy, thermogravimetric analysis, energy dispersive X-ray analysis, and vibrating sample magnetometer analysis ascertained the successful formation of catalyst. The performance of a magnetically retrievable SILP catalyst was evaluated in the selective oxidation of alcohols. The split test and leaching studies of the SILP catalyst confirmed its heterogeneous nature. In addition, the reusability potential of SILP catalyst was also investigated which revealed its robust activity up to six consecutive cycles.

scholarly journals Catalytic Hydrogenolysis of Substituted Diaryl Ethers by Using Ruthenium Nanoparticles on an Acidic Supported Ionic Liquid Phase (Ru@SILP-SO3H)

Synlett ◽  
2019 ◽  
Vol 30 (04) ◽  
pp. 405-412 ◽  
Author(s):  
Simon Rengshausen ◽  
Fabian Etscheidt ◽  
Johannes Großkurth ◽  
Kylie Luska ◽  
Alexis Bordet ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Liquid Phase ◽  
Diphenyl Ether ◽  
Ruthenium Nanoparticles ◽  
Diaryl Ethers ◽  
Supported Ionic Liquid ◽  
Highly Active ◽  
Catalytic Hydrogenolysis ◽  
Multifunctional Catalyst ◽  
Commercial Equipment

Catalytic hydrogenolysis of diaryl ethers is achieved by using ruthenium nanoparticles immobilized on an acidic supported ionic liquid phase (Ru@SILP-SO3H) as a multifunctional catalyst. The catalyst components are assembled through a molecular approach ensuring synergistic action of the metal and acid functions. The resulting catalyst is highly active for the hydrogenolysis of various diaryl ethers. For symmetric substrates such as diphenyl ether, hydrogenolysis is followed by full hydrodeoxygenation producing the corresponding cycloalkanes as the main products. For unsymmetric substrates, the cleavage of the C–O bond is regioselective and occurs adjacent to the unsubstituted phenyl ring. As hydrogenation of benzene is faster than hydrodeoxygenation over the Ru@SILP-SO3H catalyst, controlled mixtures of cyclohexane and substituted phenols are accessible with good selectivity. Application of Ru@SILP-SO3H catalyst in continuous-flow hydrogenolysis of 2-methoxy-4-methylphenoxybenzene is demonstrated with use of commercial equipment.

scholarly journals Influence of the Ionic Liquid on the Activity of a Supported Ionic Liquid Phase FeII Pincer Catalyst for the Hydrogenation of Aldehydes

2019 ◽  
Vol 2019 (30) ◽  
pp. 3503-3510 ◽  
Author(s):  
Zita Csendes ◽  
Julian Brünig ◽  
Nevzat Yigit ◽  
Günther Rupprechter ◽  
Katharina Bica-Schröder ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Liquid Phase ◽  
Supported Ionic Liquid

scholarly journals Solvothermal Synthesis of Mn3O4Nanoparticle/Graphene Sheet Composites and Their Supercapacitive Properties

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Y. F. Liu ◽  
G. H. Yuan ◽  
Z. H. Jiang ◽  
Z. P. Yao
Keyword(s):  
Electron Microscopy ◽  
Graphene Sheet ◽  
Low Cost ◽  
High Specific Capacitance ◽  
Ethanol Solution ◽  
Diffraction Field ◽  
Electrochemical Performances ◽  
One Pot ◽  
Long Term Stability ◽  
Transmission Electron

Mn3O4nanoparticle/graphene sheet (GM) composites were synthesized via a one-pot and low-cost solvothermal process in an ethanol solution. The as-prepared materials were characterized by X-ray diffraction, field emission scanning electron microscopy, and transmission electron microscopy. Results showed that the nanosized Mn3O4particles had tetragonal hausmannite structure and were successfully loaded on the graphene sheets. Moreover, the electrochemical performances of GM composites produced by different mass percents of Mn2+/graphite oxide (GO) were evaluated by means of cyclic voltammetry and galvanostatic charge-discharge studies. The composite prepared with Mn2+/GO mass percent of 10 : 90 showed a high specific capacitance of 245 F/g at 5 mV/s in the 6 M KOH solution and better long-term stability along with 81% of its initial capacitance after 1200 cycles at 0.5 A/g.

ChemInform Abstract: Supported Ionic Liquid Phase Catalysts

ChemInform ◽  
2010 ◽  
Vol 41 (19) ◽  
Author(s):  
Anders Riisager ◽  
Rasmus Fehrmann
Keyword(s):  
Ionic Liquid ◽  
Liquid Phase ◽  
Supported Ionic Liquid
Sign in / Sign up

Export Citation Format

Share Document