Facile synthesis of imidazoles by an efficient and eco-friendly heterogeneous catalytic system constructed of Fe3O4 and Cu2O nanoparticles, and guarana as a natural basis

2021 ◽  
Vol 125 ◽  
pp. 108465
Author(s):  
Zahra Varzi ◽  
Mir Saeed Esmaeili ◽  
Reza Taheri-Ledari ◽  
Ali Maleki
Keyword(s):  
Catalytic System ◽  
Natural Basis ◽  
Facile Synthesis ◽  
Heterogeneous Catalytic ◽  
Heterogeneous Catalytic System ◽  
Cu2o Nanoparticles

A new heterogeneous catalytic system for decolorization and mineralization of Orange G acid dye based on hydrogen peroxide and a macroporous chelating polymer

2012 ◽  
Vol 95 (1) ◽  
pp. 79-88 ◽  
Author(s):  
Viorica Dulman ◽  
Simona Maria Cucu-Man ◽  
Romeo Iulian Olariu ◽  
Rodica Buhaceanu ◽  
Mihai Dumitraş ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Catalytic System ◽  
Acid Dye ◽  
Heterogeneous Catalytic ◽  
Heterogeneous Catalytic System ◽  
Chelating Polymer ◽  
Orange G

Cu/CuxOy NPs architectured COF: a recyclable catalyst for the synthesis of oxazolidinedione via atmospheric cyclizative CO2 utilization

2020 ◽  
Vol 56 (81) ◽  
pp. 12202-12205
Author(s):  
Somnath Sarkar ◽  
Swarbhanu Ghosh ◽  
Jahangir Mondal ◽  
Sk. Manirul Islam
Keyword(s):  
Catalytic System ◽  
Value Added ◽  
Recyclable Catalyst ◽  
Co2 Utilization ◽  
Heterogeneous Catalytic ◽  
Heterogeneous Catalytic System

This work emphasizes the utility of COFs in establishing a heterogeneous catalytic system for the generation of value-added oxazolidinediones under alkali-free conditions (sustainable approach).

Synthesis of Ethyl Acetate by Coupling a Heterogeneous Catalytic System with a Pervaporation Unit

2005 ◽  
Vol 39 (7) ◽  
pp. 1485-1500 ◽  
Author(s):  
Flávio dos Reis Gonçalves ◽  
Luiz Eduardo Pizarro Borges ◽  
Cristiano Piacsek Borges
Keyword(s):  
Ethyl Acetate ◽  
Catalytic System ◽  
Heterogeneous Catalytic ◽  
Heterogeneous Catalytic System

An active and selective heterogeneous catalytic system for Michael addition

2012 ◽  
Vol 23 (5) ◽  
pp. 537-540 ◽  
Author(s):  
Hoda Keipour ◽  
Mohammad A. Khalilzadeh ◽  
Abolfazl Hosseini ◽  
Afsaneh Pilevar ◽  
Daryoush Zareyee
Keyword(s):  
Catalytic System ◽  
Michael Addition ◽  
Heterogeneous Catalytic ◽  
Heterogeneous Catalytic System

Polymeric ionic liquid nanogel-anchored tungstate anions: a robust catalytic system for oxidation of sulfides to sulfoxides

2015 ◽  
Vol 39 (2) ◽  
pp. 1348-1354 ◽  
Author(s):  
Ali Pourjavadi ◽  
Mojtaba Nazari-Chamazkoti ◽  
Seyed Hassan Hosseini
Keyword(s):  
Ionic Liquid ◽  
Catalytic System ◽  
Polymeric Ionic Liquid ◽  
Heterogeneous Catalytic ◽  
Oxidation Of Sulfides ◽  
Heterogeneous Catalytic System ◽  
Poly Ionic Liquid

A new heterogeneous catalytic system was prepared by immobilization of tungstate ions on a cross-linked poly(ionic liquid) nanogel.

scholarly journals P2O5/SiO2as an Efficient, Green and Heterogeneous Catalytic System for the Solvent-Free Synthesis of 3,4-Dihydropyrimidin-2-(1H)-ones (and -Thiones)

2009 ◽  
Vol 6 (2) ◽  
pp. 459-465 ◽  
Author(s):  
Alireza Hasaninejad ◽  
Abdolkarim Zare ◽  
Farhad Jafari ◽  
Ahmad Reza Moosavi-Zare
Keyword(s):  
Catalytic System ◽  
Catalytic Amount ◽  
Solvent Free ◽  
Heterogeneous Catalytic ◽  
Heterogeneous Catalytic System ◽  
High Yields ◽  
Solvent Free Synthesis

A simple, green and efficient solventless procedure for the synthesis of 3,4-dihydropyrimidin-2-(1H)-ones (and -thiones) from aldehydes, β-ketoesters and urea or thiourea in the presence of catalytic amount of silica-supported P2O5(P2O5/SiO2) at 85 °C is described. Using this method, the title compounds were produced in high yields.

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