Pd/MCM-41催化碘苯Ullmann偶合制备联苯  

Ullmann coupling reaction of iodobenzene to biphenyl over a Pd/MCM-41 catalyzed

作　　者：朱凤霞[1] 万颖[1] 李和兴[1] 

机构地区：[1]上海师范大学化学系,上海200234

出　　处：《化学研究与应用》2005年第3期403-405,共3页Chemical Research and Application

基　　金：国家自然科学基金资助项目(20377031);上海市启明星计划资助项目

摘　　要：The nanostructured mesoporous Pd/MCM-41 catalyst was prepared by impregnation.This catalyst exhibited high activity and selectivity to piphenyl during Ullmann coupling reaction of iodobenzene.With Pd loading of 12%,the biphenyl yield may reach 50%,showing its good potential to match the homogeneous catalyst in traditional Ullmann coupling reactions.Based on BET and XRD etc.characterizations,the relationship between the excellent catalytic properties of the Pd/MCM-41 and its structural characteristics was discussed briefly.The nanostructured mesoporous Pd/MCM-41 catalyst was prepared by impregnation.This catalyst exhibited high activity and selectivity to piphenyl during Ullmann coupling reaction of iodobenzene.With Pd loading of 12%,the biphenyl yield may reach 50%,showing its good potential to match the homogeneous catalyst in traditional Ullmann coupling reactions.Based on BET and XRD etc.characterizations,the relationship between the excellent catalytic properties of the Pd/MCM-41 and its structural characteristics was discussed briefly.

关 键 词：Pd/MCM-41 Ullmann偶联反应 碘苯 联苯 

分 类 号：O625.322[理学—有机化学]