可磁性回收纳米级负载型杂多酸催化剂用于水中生物活性化合物的绿色合成(英文)  

Magnetically recoverable,nanoscale-supported heteropoly acid catalyst for green synthesis of biologically active compounds in water

作　　者：Ezzat Rafiee Sara Eavani Maryam Khodayari 

机构地区：[1]Faculty of Chemistry,Razi University,Kermanshah,67149,Iran

出　　处：《催化学报》2013年第8期1513-1518,共6页

基　　金：supported by Razi University Research Council and Iran National Science Foundation

摘　　要：12‐Tungstophosphoric acid supported on aerosil silica and silica‐coated γ‐Fe2O3 nanoparticles was prepared and characterized using transmission electron microscopy,scanning electron microscopy,and inductively coupled plasma atomic emission spectroscopy.The catalytic activity of the two prepared catalysts was compared in the synthesis of 1,8‐dioxo‐9,10‐diaryldecahydroacridines in water.12‐Tungstophosphoric acid was highly dispersed on the silica‐coated γ‐Fe2O3 nanoparticles and showed higher activity and a higher reuse number compared with the acid supported on aerosil silica.The catalyst could be recovered simply by using an external magnetic field and could be reused several times without appreciable loss of its catalytic activity.12‐Tungstophosphoric acid supported on aerosil silica and silica‐coated γ‐Fe2O3 nanoparticles was prepared and characterized using transmission electron microscopy,scanning electron microscopy,and inductively coupled plasma atomic emission spectroscopy.The catalytic activity of the two prepared catalysts was compared in the synthesis of 1,8‐dioxo‐9,10‐diaryldecahydroacridines in water.12‐Tungstophosphoric acid was highly dispersed on the silica‐coated γ‐Fe2O3 nanoparticles and showed higher activity and a higher reuse number compared with the acid supported on aerosil silica.The catalyst could be recovered simply by using an external magnetic field and could be reused several times without appreciable loss of its catalytic activity.

关 键 词：负载杂多酸催化剂 生物活性化合物 纳米Fe2O3 绿色合成 电感耦合等离子体原子发射光谱法 可恢复 透射电子显微镜 扫描电子显微镜 

分 类 号：O621.36[理学—有机化学]