%0 Journal Article
%T Palladiumparticlesfromoxime-derivedpalladacyclesupportedonFe3O4/oleicacidasacatalystforthecopper-freeSonogashiracross-couplingreaction
%A Kazem Karami
%A Samaneh Dehghani Najvani
%A Nasrin Haghighat Naeini
%A Pablo Herv¨¦
%A s
%J ´ß»¯Ñ§±¨
%P 1047-1053
%D 2015
%R 10.1016/S1872-2067(15)60837-3
%X £¿Anoxime-derivedpalladacyclewassynthesizedusing4-bromobenzoximeandpyridineinCHCl3,andcharacterizedbyFT-IRand1HNMRspectroscopy.ThisPdcomplexwassupportedonFe3O4/oleicacidandshowntobeanefficientcatalystforthecopper-freeSonogashiracross-couplingreactionofvariousarylhalideswithphenylacetyleneinairandinethanolormixedaqueousmedium.Theoxime-derivedpalladacyclegavehighlyactivepalladiumnanoparticlesfortheorganicsynthesis.ThecouplingproductswereobtainedinhighyieldswithlowPdloadingandtheheterogeneouscatalystcanbeseparatedbyanexternalmagnetandreusedsixtimeswithoutlossofitsactivity.ThecharacterizationofthecatalystwascarriedoutbyXRD,SEMandTEM.BothTEMandXRDrevealedthatthepalladiumnanoparticleswerewelldispersedwithdiametersfrom5to10nmandaveragesize9.97nm.
%K Oxime-derivedpalladacycle
%K Sonogashiracross-couplingreaction
%K Copper-free
%K Magnetite/oleicacid
%K LowPdloading
%U http://www.chxb.cn/CN/abstract/abstract21611.shtml