Ni2+ supported on hydroxyapatite-core-shell γ-Fe2O3 nanoparticles: a novel, highly efficient and reusable lewis acid catalyst for the regioselective azidolysis
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- 作者：Sami Sajjadifar (1)
Zahra Abbasi (1)
Eshagh Rezaee Nezhad (1)
Mojtaba Rahimi Moghaddam (1)
Saaid Karimian (1)
Sara Miri (1) - 关键词：γ ; Fe2O3 ; Ni2+ supported ; Lewis acid ; Epoxide ; Regioselective ; Azidohydrins
- 刊名：Journal of the Iranian Chemical Society
- 出版年：2014
- 出版时间：April 2014
- 年：2014
- 卷：11
- 期：2
- 页码：335-340
- 全文大小：1,268 KB
- 作者单位：Sami Sajjadifar (1)
Zahra Abbasi (1)
Eshagh Rezaee Nezhad (1)
Mojtaba Rahimi Moghaddam (1)
Saaid Karimian (1)
Sara Miri (1)
1. Department of Chemistry, Payame Noor University, PO BOX 19395-4697, Tehran, Iran - ISSN：1735-2428
文摘
In this research, Ni2+ supported on hydroxyapatite-core-shell magnetic γ-Fe2O3 nanoparticles (γ-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.