Imidazolium-based ionic liquids grafted on solid surfaces

2014 ◽  
Vol 43 (20) ◽  
pp. 7171-7187 ◽  
Author(s):  
Bingwei Xin ◽  
Jingcheng Hao
Keyword(s):  
Ionic Liquids ◽  
Solid Surfaces ◽  
Supported Ionic Liquids ◽  
Derivatives Of

Supported ionic liquids (SILs), which refer to ionic liquids (ILs) immobilized on supports, are among the most important derivatives of ILs.

Development of the room temperature protocol based on room temperature ionic liquids and surfactant ionic liquids for the synthesis of derivatives of 2-amino-thiazoles and thermo-physical analysis of the synthesized derivatives using TGA-DSC.

2020 ◽  
Vol 10 ◽  
Author(s):  
Chandrakant Sarode ◽  
Sachin Yeole ◽  
Ganesh Chaudhari ◽  
Govinda Waghulde ◽  
Gaurav Gupta
Keyword(s):  
Thermal Analysis ◽  
Heat Capacity ◽  
Ionic Liquids ◽  
Specific Heat ◽  
Specific Heat Capacity ◽  
Room Temperature ◽  
Heat Capacity Data ◽  
General Strategy ◽  
Capacity Data ◽  
Derivatives Of

Aims: To develop an efficient protocol, which involves an elegant exploration of the catalytic potential of both the room temperature and surfactant ionic liquids towards the synthesis of biologically important derivatives of 2-aminothiazole. Objective: Specific heat capacity data as a function of temperature for the synthesized 2- aminothiazole derivatives has been advanced by exploring their thermal profiles. Method: The thermal gravimetry analysis and differential scanning calorimetry techniques are used systematically. Results: The present strategy could prove to be a useful general strategy for researchers working in the field of surfactants and surfactant based ionic liquids towards their exploration in organic synthesis. In addition to that, effect of electronic parameters on the melting temperature of the corresponding 2-aminothiazole has been demonstrated with the help of thermal analysis. Specific heat capacity data as a function of temperature for the synthesized 2-aminothiazole derivatives has also been reported. Conclusion: Melting behavior of the synthesized 2-aminothiazole derivatives is to be described on the basis of electronic effects with the help of thermal analysis. Additionally, the specific heat capacity data can be helpful to the chemists, those are engaged in chemical modelling as well as docking studies. Furthermore, the data also helps to determine valuable thermodynamic parameters such as entropy and enthalpy.

scholarly journals Supported Ionic Liquids. New Recyclable Materials for theL-Proline-Catalyzed Aldol Reaction

2006 ◽  
Vol 348 (1-2) ◽  
pp. 82-92 ◽  
Author(s):  
Michelangelo Gruttadauria ◽  
Serena Riela ◽  
Carmela Aprile ◽  
Paolo Lo Meo ◽  
Francesca D'Anna ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Aldol Reaction ◽  
Supported Ionic Liquids

Effect of anion type of imidazolium based polymer supported ionic liquids on the solvent free synthesis of cycloaddition of CO2 into epoxide

2016 ◽  
Vol 265 ◽  
pp. 56-67 ◽  
Author(s):  
Arvind H. Jadhav ◽  
Gaurav M. Thorat ◽  
Kyuyoung Lee ◽  
Alan Christian Lim ◽  
Hyo Kang ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Solvent Free ◽  
Polymer Supported ◽  
Supported Ionic Liquids ◽  
Solvent Free Synthesis ◽  
Anion Type

scholarly journals Novel and Reusable Mesoporous Silica Supported 4-Methylbenzenesul- fonate-functionalized Ionic Liquids for Room Temperature Highly Efficient Preparation of 2,4,5-Triaryl-1H-imidazoles

2021 ◽  
Vol 65 (4) ◽  
Author(s):  
Yang Liu ◽  
Qi Rong ◽  
Chen Chen ◽  
Hu Yu Lin
Keyword(s):  
Ionic Liquids ◽  
Room Temperature ◽  
Catalytic Mechanism ◽  
Catalyst Stability ◽  
Catalyst Amount ◽  
Supported Ionic Liquid ◽  
Highly Efficient ◽  
Excellent Activity ◽  
Commercial Applications ◽  
Supported Ionic Liquids

Abstract. A series of mesoporous materials supported ionic liquids were prepared and tested as effective and practical catalysts for the synthesis of 2,4,5-triaryl-1H-imidazoles. The effects of type of catalysts, catalyst amount, and catalyst stability have also been investigated in detail, the catalyst Ti-SBA-15@ILTsO exhibited excellent activity in excellent yields of 92 % ~ 99 % with low catalyst amount at room temperature within 1 h. In addition, the supported ionic liquid can be easily recovered and reused for six times with satisfactory catalytic activity. Furthermore, a general synergetic catalytic mechanism for the reaction was proposed. Maybe this work employing Ti-SBA-15@ILTsO as highly efficient and stable catalyst for the synthesis of 2,4,5-triaryl-1H-imidazoles has potential commercial applications.   Resumen. Se prepararon y probaron una serie de materiales mesoporosos soportados con líquidos iónicos como catalizadores eficaces y prácticos para la síntesis de 2,4,5-triaryl-1H-imidazoles. También se investigaron en detalle los efectos del tipo de catalizadores, la cantidad de catalizador y la estabilidad del catalizador. El catalizador Ti-SBA-15@ILTsO mostró una excelente actividad con rendimientos excelentes del 92 % ~ 99% con una baja cantidad de catalizador a temperatura ambiente en 1 h. Además, el líquido iónico soportado puede recuperarse fácilmente y reutilizarse durante seis veces con una actividad catalítica satisfactoria. Por otro lado, se propuso un mecanismo catalítico sinérgico general para la reacción. Este trabajo que emplea Ti-SBA-15@ILTsO como catalizador altamente eficiente y estable para la síntesis de 2,4,5-triaril-1H-imidazoles puede tener aplicaciones potencialmente comerciales.

Carbon-supported ionic liquids as innovative adsorbents for CO2 separation from synthetic flue-gas

2015 ◽  
Vol 448 ◽  
pp. 41-50 ◽  
Author(s):  
Alessandro Erto ◽  
Ana Silvestre-Albero ◽  
Joaquín Silvestre-Albero ◽  
Francisco Rodríguez-Reinoso ◽  
Marco Balsamo ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Flue Gas ◽  
Co2 Separation ◽  
Supported Ionic Liquids

scholarly journals Synthesis of 4-Alkyl-4H-1,2,4-triazole Derivatives by Suzuki Cross-coupling Reactions and Their Luminescence Properties

Molecules ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 652 ◽  
Author(s):  
Monika Olesiejuk ◽  
Agnieszka Kudelko ◽  
Marcin Swiatkowski ◽  
Rafal Kruszynski
Keyword(s):  
Ionic Liquids ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Boronic Acids ◽  
Luminescence Properties ◽  
Coupling Reactions ◽  
Triazole Derivatives ◽  
Cross Coupling Reactions ◽  
Cross Coupling Reaction ◽  
Derivatives Of

New derivatives of 4-alkyl-3,5-diaryl-4H-1,2,4-triazole were synthesized utilizing the Suzuki cross-coupling reaction. The presented methodology comprises of the preparation of bromine-containing 4-alkyl-4H-1,2,4-triazoles and their coupling with different commercially available boronic acids in the presence of ionic liquids or in conventional solvents. The obtained compounds were tested for their luminescence properties.

scholarly journals Silica-Supported Ionic Liquids for Heat-Powered Sorption Desalination

2019 ◽  
Vol 11 (40) ◽  
pp. 36497-36505 ◽  
Author(s):  
Ahmed Askalany ◽  
Christopher Olkis ◽  
Emilia Bramanti ◽  
Dmitry Lapshin ◽  
Luigi Calabrese ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Supported Ionic Liquids

scholarly journals The products of partial hydrogenation of higher monoethylenic esters

1929 ◽  
Vol 122 (790) ◽  
pp. 552-563 ◽  
Keyword(s):  
Oleic Acid ◽  
General Theory ◽  
Potassium Permanganate ◽  
Elaidic Acid ◽  
Octadecenoic Acid ◽  
Catalytic Action ◽  
Solid Surfaces ◽  
Partial Hydrogenation ◽  
Cooh Cooh ◽  
Derivatives Of

The formation of “iso-oleic” acids during hydrogenation of oleic (Δ 9 : 10 - octadecenoic) acid or its esters is of importance in connection with the general theory of catalytic action at solid surfaces. The constitution of these isomeric acids has therefore been re-examined by means of the oxidising action of potassium permanganate upon hot acetone solutions of their unsaturated esters, a method which has been shown to break such compounds up almost quantitatively into derivatives of the corresponding monobasic and dibasic acids:- CH 3 . [CH 2 ] x . CH : CH. [CH 2 ] y . COOR → CH 3 . [CH 2 ] x . COOH + COOH. [CH 2 ] y . COOR. Moore has already shown that during hydrogenation a state of equilibrium is reached between the amounts of ordinary oleic acid present and the isomeric forms, and that the latter include elaidic acid together with one or more isooleic acids produced by migration of the ethylenic linkage (Δ 11 : 12 -octadecenoic acid being suggested as a possible product).

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