Zinc oxide nanoparticles:A highly efficient and readily recyclable catalyst for the synthesis of xanthenes  

作　　者：Javad Safaei-Ghomi Mohammad Ali Ghasemzadeh 

机构地区：[1]Department of Organic Chemistry,Faculty of Chemistry,University of Kashan

出　　处：《Chinese Chemical Letters》2012年第11期1225-1229,共5页中国化学快报（英文版）

基　　金：University of Kashan for supporting this work by Grant 159196/Ⅶ;Iran National Science Foundation for supporting this work

摘　　要：A novel and efficient route for the synthesis of 1,8-dioxooctahydroxanthenes and 14-aryl-14H-dibenzo[a,j]xanthenes is described through one-pot multi-component reaction of dimedone and 2-naphthol with various aryl aldehydes using ZnO nanoparticles under solvent-free conditions. This method provides a novel and improved pathway for the synthesis of xanthenes in the terms of excellent yields, short reaction times, reusability and low catalyst loading.A novel and efficient route for the synthesis of 1,8-dioxooctahydroxanthenes and 14-aryl-14H-dibenzo[a,j]xanthenes is described through one-pot multi-component reaction of dimedone and 2-naphthol with various aryl aldehydes using ZnO nanoparticles under solvent-free conditions. This method provides a novel and improved pathway for the synthesis of xanthenes in the terms of excellent yields, short reaction times, reusability and low catalyst loading.

关 键 词：ZnO nanoparticles XANTHENE SOLVENT-FREE Multi-component reaction Heterogeneous catalysts 

分 类 号：O626.3[理学—有机化学] TN304.21[理学—化学]