纤维素乙二胺负载钯配合物的制备及其对Heck反应的催化性能  

Preparation of Palladium Complex Supported by Ethylenediamine Cellulose and Its Catalytic Behavior for Heck Reaction

作　　者：许英[1] 赵清岚[1] 张磊[1] 余景花[1] 崔元臣[1] 

机构地区：[1]河南大学化学化工学院,河南开封475004

出　　处：《化学研究》2008年第4期73-77,共5页Chemical Research

基　　金：河南省自然科学基金资助项目(611020500)

摘　　要：合成了纤维素乙二胺负载钯(CE-Pd)配合物,用IR、XPS、TG/DTA等手段对其进行了表征.该配合物在室温至280℃范围内有很好的稳定性,在空气氛围水相中能有效地催化丙烯酸与芳基碘、苯乙烯与芳基碘的Heck芳基化反应,立体选择性地生成取代的反式肉桂酸、1,2-二苯乙烯.在80℃时反应6h,反式肉桂酸的产率达89.7%.纤维素乙二胺负载钯(CE-Pd)配合物还具有较好的重复使用性能,连续使用4次,反式肉桂酸的产率仍可达到63.5%.The ethylenediamine cellulose supported palladium（0） complex was synthesized and charac- terized by IR, XPS, TG/DTA etc. The complex has good thermal stability from room temperature to 280℃ and found to be an efficient catalyst for Heck reaction of acrylic acid or styrene with aryl iodide at low temperature in water under atmospheric condition. The substituted trans-cinnamic acid or 1,2- stilbene was obtained with high yield at 80 ℃ and reaction time of 6 h. The ethylenediamine cellulose supported palladium（0） complex could be separated from the reaction mixture easily and reused for several cycles. The conversion could still go up to 63.5 % when the catalyst was run for 4 times.

关 键 词：纤维素乙二胺 钯 负载型催化剂 HECK反应 反式肉桂酸 1 2-二苯乙烯 

分 类 号：TQ426.65[化学工程]