Ni2+ supported on hydroxyapatite-core@shell γ-Fe2O3 nanoparticles as new and green catalyst for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones under solvent-free condition
Journal Title: Iranian Chemical Communication - Year 2013, Vol 1, Issue 1
Abstract
The aim of this research is to study Ni2+ supported on hydroxyapatite-core-shell magnetic γ-Fe2O3 nanoparticles (γ-Fe2O3@HAp-Ni2+) as a green and recyclable catalyst for the Biginelli reaction under solvent-free conditions. One-pot multi-component condensation of 1,3-dicarbonyl compounds, urea and aldehydes at 80 oC affords the corresponding compounds in high yields and in short reaction times using γ-Fe2O3@HAp-Ni2+. 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.
Authors and Affiliations
Eshagh Rezaee Nezhad, Dr. Zahra Abbasi, Mojtaba Rahimi Moghaddam, Mohammad Ali Attaei
Keywords
Related Articles
- EP ID EP252827
- DOI -
- Views 116
- Downloads 0
Synthesis and characterization of novel silyl derivatives of curcumin
Turmeric is a member of the ginger family (Zingiberaceae), which is extensively used as a spice, food preservative and colouring material. Curcumin is a main bioactive natural compound derived from the rhizome of this pl...
Pharmacological properties of some 3-substituted indole derivatives, a concise overview
Indole is a nitrogen-containing heterocycle. It is a very important motif in agriculture and pharmacy. Many compounds containing indole moiety has been isolated form nature. It is also an important part in natural alkalo...
Electrosynthesis and optical modeling of ZnO nanostructures
Optical modeling was applied for obtaining absorbance spectra and band gap values for different morphology of ZnO semiconductor. In optical modeling, the relative permittivity scalars of zinc oxide coral like nanorods we...
A theoretical study on quadrupole coupling parameters of HRPII Protein modeled as 310-helix & α-helix structures
A fragment of Histidine rich protein II (HRP II 215-236) was investigated by 14N and 17O electric field gradient, EFG, tensor calculations using DFT. This study is intended to explore the differences between 310-helix an...
Mn(II) salen complex immobilized on nano silicagel as a recyclable heterogeneous catalyst for oxidation of alcohols to their corresponding carbonyl compounds
Mn(II) salen complex immobilized on nano silicagel was prepared by incorporating Mn(II) salen complex into a nanosilica matrix and characterized by TGA, XRD, atomic absorption spectroscopy and was successfully applied as...