Title : ( Preyssler heteropoly acid supported on silica coated NiFe2O4 nanoparticles for the catalytic synthesis of bis(dihydropyrimidinone)benzene and 3,4‐dihydropyrimidin‐2(1H)‐ones )
Authors: Hossein Eshghi , Ali Javid , Amir khojastehnezhad golmakani , Farid Moeinpour , Fatemeh F. Bamoharram , Mehdi Bakavoli , Masoud Mirzaei Shahrabi ,
Full TextAbstract
A novel magnetic acidic catalyst comprising Preyssler (H14[NaP5W30O110]) heteropoly acid supported on silica coated nickel ferrite nanoparticles (NiFe2O4@SiO2) was prepared. The catalyst was characterized by Fourier transform infrared, scanning electron microscopy, transmission electron microscopy, X-ray diffraction, energy dispersive spectrum, VSM and particle size neasurement. Its catalytic activity was investigated for the synthesis of bis(dihydropyrimidinone)benzene and 3,4-dihydropyrimidin-2(1H)-ones derivatives by the Biginelli reaction. With the catalyst, the reactions occurred in less than 1 h with good to excel-lent yields. More importantly, the catalyst was easily separated from the reaction mixture by an external magnet and reused at least five times without degradation in the activity.
Keywords
, Preyssler, Nickel ferrite nanoparticles, Magnetically green catalyst, Bis(dihydropyrimidinone)benzene 3, 4‐Dihydropyrimidin‐2(1H)‐ones
@article{paperid:1045673,
author = {Eshghi, Hossein and Ali Javid and Khojastehnezhad Golmakani, Amir and Farid Moeinpour and Fatemeh F. Bamoharram and Bakavoli, Mehdi and Mirzaei Shahrabi, Masoud},
title = {Preyssler heteropoly acid supported on silica coated NiFe2O4 nanoparticles for the catalytic synthesis of bis(dihydropyrimidinone)benzene and 3,4‐dihydropyrimidin‐2(1H)‐ones},
journal = {Chinese Journal of Catalysis},
year = {2015},
volume = {36},
number = {3},
month = {February},
issn = {0253-9837},
pages = {299--307},
numpages = {8},
keywords = {Preyssler; Nickel ferrite nanoparticles; Magnetically green catalyst; Bis(dihydropyrimidinone)benzene
3;4‐Dihydropyrimidin‐2(1H)‐ones},
}
%0 Journal Article
%T Preyssler heteropoly acid supported on silica coated NiFe2O4 nanoparticles for the catalytic synthesis of bis(dihydropyrimidinone)benzene and 3,4‐dihydropyrimidin‐2(1H)‐ones
%A Eshghi, Hossein
%A Ali Javid
%A Khojastehnezhad Golmakani, Amir
%A Farid Moeinpour
%A Fatemeh F. Bamoharram
%A Bakavoli, Mehdi
%A Mirzaei Shahrabi, Masoud
%J Chinese Journal of Catalysis
%@ 0253-9837
%D 2015
