Environmentally benign chemical fixation of CO_(2) catalyzed by the functionalized ion-exchange resins  

作　　者：LIU AnHua HE LiangNian PENG ShiYong PAN ZhongDa WANG JingLun GAO Jian 

机构地区：[1]State Key Laboratory of Elemento-Organic Chemistry,Institute of Elemento-Organic Chemistry,Nankai University,Tianjin 300071,China

出　　处：《Science China Chemistry》2010年第7期1578-1585,共8页中国科学(化学英文版)

基　　金：supported by the National Natural Science Foundation of China (20672054 & 20872073);the 111 Project of the Ministry of Education of China (B06005)

摘　　要：Basic ion-exchange resins,one kind of polystyryl-supported tertiary amine,were demonstrated to be highly efficient and recyclable catalysts for the fixation of carbon dioxide with aziridines under mild conditions,leading to the formation of 5-aryl-2-oxazolidinone with excellent regio-selectivities.Notably,neither solvents nor any additives were required,and the catalyst could be recovered by simple filtration and directly reused at least five times without significant loss of catalytic activity and selectivity.The present protocol has been applied to reactions of epoxides/propargyl amines with CO_(2)/CS2.This solvent-free process thus represents environmentally friendly catalytic conversion of CO_(2) into value-added chemicals and may have potential in various continuous flow reactors in industry.Basic ion-exchange resins,one kind of polystyryl-supported tertiary amine,were demonstrated to be highly efficient and recyclable catalysts for the fixation of carbon dioxide with aziridines under mild conditions,leading to the formation of 5-aryl-2-oxazolidinone with excellent regio-selectivities.Notably,neither solvents nor any additives were required,and the catalyst could be recovered by simple filtration and directly reused at least five times without significant loss of catalytic activity and selectivity.The present protocol has been applied to reactions of epoxides/propargyl amines with CO_(2)/CS2.This solvent-free process thus represents environmentally friendly catalytic conversion of CO_(2) into value-added chemicals and may have potential in various continuous flow reactors in industry.

关 键 词：CYCLOADDITION carbon dioxide AZIRIDINE ion-exchange resin solvent-free process 

分 类 号：O643.32[理学—物理化学]