Paper Information

Journal:   JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS)   APRIL 2014 , Volume 11 , Number 2; Page(s) 335 To 340.
 
Paper: 

NI2+ SUPPORTED ON HYDROXYAPATITE-CORE-SHELL γ-FE2O3 NANOPARTICLES: A NOVEL, HIGHLY EFFICIENT AND REUSABLE LEWIS ACID CATALYST FOR THE REGIOSELECTIVE AZIDOLYSIS OF EPOXIDES IN WATER

 
 
Author(s):  SAJJADIFAR SAMI, ABBASI ZAHRA, REZAEE NEZHAD ESHAGH*, RAHIMI MOGHADDAM MOJTABA, KARIMIAN SAAID, MIRI SARA
 
* DEPARTMENT OF CHEMISTRY, PAYAME NOOR UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

In this research, Ni2+ supported on hydroxyapatite-core-shell magnetic g-Fe2O3 nanoparticles (g-Fe2O3@HAp-Ni2+) as a novel, efficient, reusable and heterogeneous catalyst was reported. In this protocol, we used this catalyst for the ring opening of epoxide with sodium azide in water. The catalyst can be readily isolated using an external magnet and no obvious loss of activity was observed when the catalyst was reused in seven consecutive runs. The mean size and the surface morphology of the nanoparticles were characterized by transmission electron microscopy, scanning electron microscope, vibrating sample magnetometry, X-ray powder diffraction and Fourier transform infrared techniques.

 
Keyword(s): γ-FE2O3, NI2+ SUPPORTED, LEWIS ACID, EPOXIDE, REGIOSELECTIVE, AZIDOHYDRINS
 
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