聚苯胺负载钯催化剂的制备及对Heck反应的催化性能  

Synthesis of polyaniline supported palladium catalysts and its catalytic properties for Heck reaction

作　　者：曾朝霞[1] 杨元法[1] 卢茂玲[1] 蒋静[1] 

机构地区：[1]浙江师范大学物理化学研究所浙江省固体表面反应化学重点实验室,浙江金华321004

出　　处：《浙江师范大学学报（自然科学版）》2006年第4期430-434,共5页Journal of Zhejiang Normal University:Natural Sciences

基　　金：浙江省自然科学基金资助项目(M203146)

摘　　要：以苯胺为原料，通过原位聚合反应制备了聚苯胺负载钯催化剂，并对产物进行了IR、XRD、TG-DTA表征．该催化剂具有制备过程简单、热稳定性高的优点，在空气氛围中能有效地催化各种取代芳基卤化物的Heck反应，对含吸电子取代基的溴代芳烃的Heck反应表现出良好的催化活性，在140℃条件下能在较短的时间内（0．3～1．8h）完全反应．Polyaniline supported-palladium catalyst was prepared in situ by polymefizing of aniline and PdCl2, which were characterized by FT-IR, XRD, TG-DTA. The catalyst can be easily synthesized and exhibits high thermal stability, it had remarkable catalytic performance in the Heck coupling of different aryl halides at at- mospheric condition, and could effectively catalyze electron-poor aryl bromides within 0.3 - 1.8 h at 140 ℃.

关 键 词：聚苯胺-钯 HECK反应 负载型钯催化剂 多相催化 催化性能 

分 类 号：O643.36[理学—物理化学]