有序介孔有机金属Pd(Ⅱ)的制备及其催化水介质中的Suzuki反应

催化学报 , 2010, 31(11): 1388-1392. doi: 10.3724/SP.J.1088.2010.00525

有序介孔有机金属Pd(Ⅱ)的制备及其催化水介质中的Suzuki反应

朱凤霞 ^1, , 杨旭石 ^2, , 杨迪迪 ^3, , 李和兴 ^4,

1.上海师范大学化学系,上海,200234

2.上海师范大学化学系,上海,200234

3.上海师范大学化学系,上海,200234

4.上海师范大学化学系,上海,200234

基金项目: 国家自然科学基金(20825724)

关键词：有序介孔有机金属钯(Ⅱ) , 均相催化剂固载化 , 水介质 , 卤代烃 , Suzuki反应 , 共缩聚

Preparation of Ordered Mesoporous Organometallic Pd(Ⅱ)and Its Catalytic Performance for Suzuki Reactions in Water Medium

以有机金属Pd硅烷和乙基桥联硅烷为混合硅源,在表而活性剂作用下进行共缩聚反应,制备了有序介孔有机金属Pd(Ⅱ)催化剂Pd(Ⅱ)-PMO(Et).采用傅里叶变换红外光谱、核磁共振谱、X射线衍射、透射电子显微镜和N2吸附脱附等手段对催化剂进行了表征.结果表明,与后嫁接法相比.共聚法制得的催化剂活性位分散均匀,孔道不易堵塞,同时乙基修饰的孔肇增强了催化剂表面疏水性,有利于反应物在孔道内的扩散和吸附,在水介质Suzuki反应中,Pd(Ⅱ).PMO(Et)的催化活性与均相催化剂Pd(PPh3)2Cl2的相当,且可重复使用.

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有序介孔有机金属Pd(Ⅱ)的制备及其催化水介质中的Suzuki反应

Preparation of Ordered Mesoporous Organometallic Pd(Ⅱ)and Its Catalytic Performance for Suzuki Reactions in Water Medium

参考文献