%0 Journal Article
%T PreysslerheteropolyacidsupportedonsilicacoatedNiFe2O4nanoparticlesforthecatalyticsynthesisofbis(dihydropyrimidinone)benzeneand3,4-dihydropyrimidin-2(1H)-ones
%A Hossein Eshghi
%A Ali Javid
%A Amir Khojastehnezhad
%A Farid Moeinpour
%A Fatemeh F. Bamoharram
%A Mehdi Bakavoli
%A Masoud Mirzaei
%J ´ß»¯Ñ§±¨
%P 299-307
%D 2015
%R 10.1016/S1872-2067(14)60265-5
%X £¿AnovelmagneticacidiccatalystcomprisingPreyssler(H14[NaP5W30O110])heteropolyacidsupportedonsilicacoatednickelferritenanoparticles(NiFe2O4@SiO2)wasprepared.ThecatalystwascharacterizedbyFouriertransforminfrared,scanningelectronmicroscopy,transmissionelectronmicroscopy,X-raydiffraction,energydispersivespectrum,VSMandparticlesizeneasurement.Itscatalyticactivitywasinvestigatedforthesynthesisofbis(dihydropyrimidinone)benzeneand3,4-dihydropyrimidin-2(1H)-onesderivativesbytheBiginellireaction.Withthecatalyst,thereactionsoccurredinlessthan1hwithgoodtoexcel-lentyields.Moreimportantly,thecatalystwaseasilyseparatedfromthereactionmixturebyanexternalmagnetandreusedatleastfivetimeswithoutdegradationintheactivity.
%K Preyssler
%K Nickelferritenanoparticles
%K Magneticallygreencatalyst
%K Bis(dihydropyrimidinone)benzene
%K 3
%K 4-Dihydropyrimidin-2(1H)-ones
%U http://www.chxb.cn/CN/abstract/abstract21544.shtml