Assemblies of Copper Ferrite and Palladium Nanoparticles on Silica Microparticles as a Magnetically Recoverable Catalyst for Sonogashira Reaction under Mild Conditions

ChemPlusChem ◽  
2015 ◽  
Vol 80 (6) ◽  
pp. 973-979 ◽  
Author(s):  
Mohammad Gholinejad ◽  
Jahantab Ahmadi
Keyword(s):  
Palladium Nanoparticles ◽  
Sonogashira Reaction ◽  
Copper Ferrite ◽  
Mild Conditions ◽  
Recoverable Catalyst ◽  
Silica Microparticles ◽  
Magnetically Recoverable Catalyst

scholarly journals DNA-supported palladium nanoparticles as a reusable catalyst for the copper- and ligand-free Sonogashira reaction

2017 ◽  
Vol 7 (11) ◽  
pp. 2262-2273 ◽  
Author(s):  
Ana Silvia Camacho ◽  
Iris Martín-García ◽  
Claudia Contreras-Celedón ◽  
Luis Chacón-García ◽  
Francisco Alonso
Keyword(s):  
Heterogeneous Catalyst ◽  
Palladium Nanoparticles ◽  
Coupling Reaction ◽  
Sonogashira Reaction ◽  
Reusable Catalyst ◽  
Sonogashira Coupling ◽  
Mild Conditions ◽  
Sonogashira Coupling Reaction ◽  
Ligand Free ◽  
Supported Palladium

Palladium nanoparticles on DNA have been shown to be an effective and reusable heterogeneous catalyst for the copper- and ligand-free Sonogashira coupling reaction of aryl iodides under mild conditions in air.

Cu-Fe Spinels: First Heterogeneous and Magnetically Recoverable Catalyst for the Ferrier Rearrangement of 2-Nitroglycals

2019 ◽  
Vol 16 (6) ◽  
pp. 447-453 ◽  
Author(s):  
Leticia Lafuente ◽  
María Florencia Rochetti ◽  
Rodolfo Bravo ◽  
Leandro Sasiambarrena ◽  
Cintia C. Santiago ◽  
...  
Keyword(s):  
Reaction Products ◽  
External Magnet ◽  
Recoverable Catalyst ◽  
Ferrier Rearrangement ◽  
Magnetically Recoverable Catalyst

Cu-Fe spinels promoted the Ferrier rearrangement of 2-nitroglycals with several O-nucleophiles. 2,3-Unsaturated carbohydrate derivatives were prepared by the reaction of 3,4,6-tri-Oacetyl- 2-nitroglucal and alcohols in the presence of 5 % of CuFe2O4. After separation of the catalyst with an external magnet, the reaction products were obtained in good yields and high stereo and regioselectivity. Also, S- and heterocyclic C-3 substituted 2-nitro-endo-glycals could be prepared by this method.

scholarly journals Magnetically recoverable nanostructured Pd complex of dendrimeric type ligand on the MCM-41: Preparation, characterization and catalytic activity in the Heck reaction

2020 ◽  
Vol 43 (1) ◽  
pp. 184-199
Author(s):  
Mohammad Abdollahi-Alibeik ◽  
Najmeh Gharibpour ◽  
Zahra Ramazani
Keyword(s):  
Heck Reaction ◽  
Palladium Complex ◽  
Nanostructured Material ◽  
Magnetic Core ◽  
Aryl Halides ◽  
Heterogeneous Samples ◽  
Recoverable Catalyst ◽  
Ft Ir ◽  
Magnetically Recoverable Catalyst ◽  
Mcm 41

AbstractA palladium complex of a dendrimer type ligand of aminoethylacrylamide immobilized onto the mesoporous channels of MCM-41 with magnetic core was prepared and characterized using various techniques such as XRD, TEM, BET, FT-IR, TGA, and VSM. The prepared nanostructured material was found as a magnetically recoverable catalyst for Heck reaction of aryl halides and vinylic C–H. The catalyst is easily recoverable with an external magnet and is reusable with different leaching amounts depending to loading of Pd. A hot filtration test was also performed and gave evidence that Palladium in heterogeneous samples can dissolve and then redeposit on the surface of the support material.

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