Fe3O4 nanoparticles: A powerful and magnetically recoverable catalyst for the synthesis of novel calix[4]resorcinarenes

2012 ◽  
Vol 23 (2) ◽  
pp. 173-176 ◽  
Author(s):  
Bahador Karami ◽  
S. Jafar Hoseini ◽  
Shaghayegh Nikoseresht ◽  
Saeed Khodabakhshi
Keyword(s):  
Fe3o4 Nanoparticles ◽  
Recoverable Catalyst ◽  
Magnetically Recoverable Catalyst

ChemInform Abstract: Fe3O4 Nanoparticles: A Robust and Magnetically Recoverable Catalyst for Three-Component Coupling of Aldehyde, Alkyne and Amine.

ChemInform ◽  
2010 ◽  
Vol 41 (34) ◽  
pp. no-no
Author(s):  
Tieqiang Zeng ◽  
Wen-Wen Chen ◽  
Ciprian M. Cirtiu ◽  
Audrey Moores ◽  
Gonghua Song ◽  
...  
Keyword(s):  
Fe3o4 Nanoparticles ◽  
Recoverable Catalyst ◽  
Magnetically Recoverable Catalyst ◽  
Three Component Coupling

Fe3O4 nanoparticles: a robust and magnetically recoverable catalyst for three-component coupling of aldehyde, alkyne and amine

2010 ◽  
Vol 12 (4) ◽  
pp. 570 ◽  
Author(s):  
Tieqiang Zeng ◽  
Wen-Wen Chen ◽  
Ciprian M. Cirtiu ◽  
Audrey Moores ◽  
Gonghua Song ◽  
...  
Keyword(s):  
Fe3o4 Nanoparticles ◽  
Recoverable Catalyst ◽  
Magnetically Recoverable Catalyst ◽  
Three Component Coupling

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.

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