Fe_3O_4 nanoparticles:A powerful and magnetically recoverable catalyst for the synthesis of novel calix[4]resorcinarenes  

作　　者：Bahador Karami S.Jafar Hoseini Shaghayegh Nikoseresht Saeed Khodabakhshi 

机构地区：[1]Department of Chemistry,Yasouj University,Yasouj 75918-74831,P.O.Box 353,Iran [2]Department of Chemistry,Gachsaran Branch,Islamic Azad University,Gachsaran 75817,lran

出　　处：《Chinese Chemical Letters》2012年第2期173-176,共4页中国化学快报（英文版）

摘　　要：A simple synthesis of novel and known calix[4]resorcinarenes derivatives has been achieved by the condensation of resorcinol and different aromatic aldehydes in the presence of catalytic amounts of Fe_3O_4 nanoparticles under solvent-free conditions.The experimental conditions have been thoroughly optimized and established,allowing significant rate enhancements and good to excellent yields.The reactions can be run safely without using any toxic organic solvents under mild reaction conditions.The Fe_3O_4 nanoparticles were characterized by powdered X-ray diffraction（XRD）,transmission electron microscopy（TEM） and FT-IR spectroscopy.A simple synthesis of novel and known calix[4]resorcinarenes derivatives has been achieved by the condensation of resorcinol and different aromatic aldehydes in the presence of catalytic amounts of Fe_3O_4 nanoparticles under solvent-free conditions.The experimental conditions have been thoroughly optimized and established,allowing significant rate enhancements and good to excellent yields.The reactions can be run safely without using any toxic organic solvents under mild reaction conditions.The Fe_3O_4 nanoparticles were characterized by powdered X-ray diffraction（XRD）,transmission electron microscopy（TEM） and FT-IR spectroscopy.

关 键 词：Fe_3O_4 nanoparticles resorcinarenes Resorcinol Arylaldehyde 

分 类 号：O625.312[理学—有机化学]