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RISPreyssler heteropoly acid supported on silica coated NiFe2O4 nanoparticles for the catalytic synthesis of bis(dihydropyrimidinone)benzene and 3,4‐dihydropyrimidin‐2(1H)‐ones
Year: 2015
Abstract:
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...
Ferric hydrogen sulfate supported on silica‐coated nickel ferrite nanoparticles as new and green magnetically separable catalyst for 1,8‐dioxodecahydroacridine synthesis
Year: 2014
Abstract:
A new magnetically separable catalyst consisting of ferric hydrogen sulfate supported on silica‐
coated nickel ferrite nanoparticles was prepared. The synthesized catalyst was characterized
using vibrating sample magnetometry, X...
Synthesis, characterization and first application of keggin-type heteropoly acids supported on silica coated NiFe2O4 as novel magnetically catalysts for the synthesis of tetrahydropyridines
Year: 2014
Abstract:
In this study, two heteroploly acids with Keggin structures (phosphotungestic acid (PWA) and
phosphomolybdic acid (PMA)) have been supported on silica coated nickel ferrite nanoparticles
(NiFe2O4@SiO2). The synthesized catalysts were...