ChemInform Abstract: Cu2O/Nano-CuFe2O4: An Efficient and Magnetically Recoverable Catalyst for the Ligand-Free N-Arylation of Amines and Nitrogen Heterocycles with Aryl Halides.

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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Salen complex of Cu(II) supported on superparamagnetic Fe3O4@SiO2 nanoparticles: an efficient and magnetically recoverable catalyst for N-arylation of imidazole with aryl halides

Monatshefte für Chemie - Chemical Monthly ◽

10.1007/s00706-018-2148-4 ◽

2018 ◽

Vol 149 (6) ◽

pp. 1101-1109 ◽

Cited By ~ 2

Author(s):

Ali Reza Sardarian ◽

Neda Zohourian-Mashmoul ◽

Mohsen Esmaeilpour

Keyword(s):

Sio2 Nanoparticles ◽

Aryl Halides ◽

Salen Complex ◽

Recoverable Catalyst ◽

Magnetically Recoverable Catalyst

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Cu2O/Nano-CuFe2O4 as a Magnetically Recoverable Catalyst for Ligand-Free Synthesis of Imidazo[1,2-a] Pyridines and 3-Aroylimidazo[1,2-a] Pyridines

National Academy Science Letters ◽

10.1007/s40009-019-00795-0 ◽

2019 ◽

Vol 42 (6) ◽

pp. 479-484 ◽

Cited By ~ 1

Author(s):

Firouzeh Nemati ◽

Mahdieh Kaveh ◽

Ali Elhampour ◽

Marzie Sadat Mirhosseyni

Keyword(s):

Recoverable Catalyst ◽

Ligand Free ◽

Magnetically Recoverable Catalyst

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

Letters in Organic Chemistry ◽

10.2174/1570178615666181022145338 ◽

2019 ◽

Vol 16 (6) ◽

pp. 447-453 ◽

Cited By ~ 5

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.

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A copper nitride catalyst for the efficient hydroxylation of aryl halides under ligand-free conditions

Organic & Biomolecular Chemistry ◽

10.1039/d1ob00768h ◽

2021 ◽

Author(s):

Hang Xu ◽

Sho Yamaguchi ◽

Takato Mitsudome ◽

Tomoo Mizugaki

Keyword(s):

Catalytic Activity ◽

Heterogeneous Catalyst ◽

Aryl Halides ◽

High Catalytic Activity ◽

Copper Nitride ◽

Ligand Free

Copper nitride (Cu3N) was used as a heterogeneous catalyst for the hydroxylation of aryl halides under ligand-free conditions. The cubic Cu3N nanoparticles showed high catalytic activity, comparable to those of...

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