Microwave-assisted heterogeneous catalysis

Catalysis ◽  
2021 ◽  
pp. 1-37
Author(s):  
Pranjali D. Muley ◽  
Yuxin Wang ◽  
Jianli Hu ◽  
Dushyant Shekhawat
Keyword(s):  
Heterogeneous Catalysis ◽  
Microwave Assisted

Improved Protocols for Microwave-Assisted Cu(I)-Catalyzed Huisgen 1,3-Dipolar Cycloadditions

2007 ◽  
Vol 72 (8) ◽  
pp. 1014-1024 ◽  
Author(s):  
Pedro Cintas ◽  
Katia Martina ◽  
Bruna Robaldo ◽  
Davide Garella ◽  
Luisa Boffa ◽  
...  
Keyword(s):  
Heterogeneous Catalysis ◽  
Microwave Irradiation ◽  
Ultrasound Irradiation ◽  
Conventional Heating ◽  
Dipolar Cycloaddition ◽  
One Pot ◽  
Click Reactions ◽  
Dipolar Cycloadditions ◽  
Microwave Assisted ◽  
New Applications

The Huisgen 1,3-dipolar cycloaddition of azides and acetylenes catalyzed by Cu(I) salts, leading to 1,2,3-triazoles, is one of the most versatile "click reactions". We have developed a series of optimized protocols and new applications of this reaction starting from several substrates, comparing heterogeneous vs homogeneous catalysis, conventional heating vs microwave irradiation or simultaneous microwave/ultrasound irradiation. Both non-conventional techniques strongly promoted the cycloaddition (bromide → azide → triazole), that could be conveniently performed in a one-pot procedure. This was feasible even with such bulky molecules as functionalized β-cyclodextrins (β-CD), starting from 61-O-tosyl-β-CD or from heptakis[6-O-(tert-butyldimethylsilyl)]-21-O-propargyl-β-CD. "Greener" heterogeneous catalysis with charcoal-supported Cu(II) or Cu(I) (prepared under ultrasound) was advantageously employed.

scholarly journals Sonochemical preparation of alumina-spheres loaded with Pd nanoparticles for 2-butyne-1,4-diol semi-hydrogenation in a continuous flow microwave reactor

RSC Advances ◽  
2018 ◽  
Vol 8 (13) ◽  
pp. 7029-7039 ◽  
Author(s):  
Emanuela Calcio Gaudino ◽  
Maela Manzoli ◽  
Diego Carnaroglio ◽  
Zhilin Wu ◽  
Giorgio Grillo ◽  
...  
Keyword(s):  
Heterogeneous Catalysis ◽  
Continuous Flow ◽  
Flow Reactor ◽  
Pd Nanoparticles ◽  
Microwave Assisted ◽  
Continuous Flow Reactor ◽  
Microwave Reactor

A novel protocol for microwave-assisted alkyne semi-hydrogenation under heterogeneous catalysis in a continuous flow reactor is reported herein.

Application of microwave-assisted heterogeneous catalysis in sustainable synthesis design

2017 ◽  
Vol 19 (16) ◽  
pp. 3729-3751 ◽  
Author(s):  
Anne Kokel ◽  
Christian Schäfer ◽  
Béla Török
Keyword(s):  
Energy Efficiency ◽  
Heterogeneous Catalysis ◽  
Scale Up ◽  
Catalytic Synthesis ◽  
Microwave Assisted Synthesis ◽  
Heterogeneous Catalytic ◽  
Microwave Assisted ◽  
Synthesis Design ◽  
Recent Advances

Recent advances in the application of microwave-assisted heterogeneous catalytic synthesis approaches are reviewed with additional inputs on the energy efficiency and scale-up of microwave-assisted synthesis.

Microwave-Assisted Carbonylation and Cyclocarbonylation of Aryl Iodides under Ligand Free Heterogeneous Catalysis

2010 ◽  
Vol 75 (6) ◽  
pp. 1841-1847 ◽  
Author(s):  
Jessica Salvadori ◽  
Evita Balducci ◽  
Silvia Zaza ◽  
Elena Petricci ◽  
Maurizio Taddei
Keyword(s):  
Heterogeneous Catalysis ◽  
Microwave Assisted ◽  
Aryl Iodides ◽  
Ligand Free

scholarly journals Pd/C-catalyzed aerobic oxidative esterification of alcohols and aldehydes: a highly efficient microwave-assisted green protocol

2014 ◽  
Vol 10 ◽  
pp. 1454-1461 ◽  
Author(s):  
Marina Caporaso ◽  
Giancarlo Cravotto ◽  
Spyros Georgakopoulos ◽  
George Heropoulos ◽  
Katia Martina ◽  
...  
Keyword(s):  
Heterogeneous Catalysis ◽  
Molecular Oxygen ◽  
Reaction Rate ◽  
Dielectric Heating ◽  
Hydrogen Acceptor ◽  
Green Protocol ◽  
Oxidative Esterification ◽  
Microwave Assisted ◽  
Simple Filtration ◽  
Green Procedure

We herein describe an environmentally friendly microwave-assisted oxidative esterification of alcohols and aldehydes in the presence of molecular oxygen and a heterogeneous catalysis (Pd/C, 5 mol %). This efficient and ligandless conversion procedure does not require the addition of an organic hydrogen acceptor. The reaction rate is strongly enhanced by mild dielectric heating. Furthermore, it is a versatile green procedure which generally enables the isolation of esters to be carried out by simple filtration in almost quantitative yields.

ChemInform Abstract: Microwave-Assisted Carbonylation and Cyclocarbonylation of Aryl Iodides under Ligand Free Heterogeneous Catalysis.

ChemInform ◽  
2010 ◽  
Vol 41 (27) ◽  
pp. no-no
Author(s):  
Jessica Salvadori ◽  
Evita Balducci ◽  
Silvia Zaza ◽  
Elena Petricci ◽  
Maurizio Taddei
Keyword(s):  
Heterogeneous Catalysis ◽  
Microwave Assisted ◽  
Aryl Iodides ◽  
Ligand Free
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