| 四乙烯五胺功能化纤维素负载纳米钯催化剂的制备及其对Suzuki反应催化性能的研究 |
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| 引用本文： | 杜庆伟,郑长青,李毅群. 四乙烯五胺功能化纤维素负载纳米钯催化剂的制备及其对Suzuki反应催化性能的研究[J]. 化学研究与应用, 2012, 24(1): 63-68 |
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| 作者姓名： | 杜庆伟 郑长青 李毅群 |
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| 作者单位： | 暨南大学化学系,广东广州,510632 |
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| 基金项目： | 国家自然科学基金，广东省自然科学基金，广州市科技计划项目 |
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| 摘 要： | 利用四乙烯五胺对环氧化纤维素进行功能化改性,并以其为载体在95％乙醇溶液中现场还原氯化钯制备出四乙烯五胺功能化纤维素负载的纳米钯催化剂.利用IR,XRD,SEM,TEM等分析方法对其进行了表征并用于催化Suzuki交叉偶联反应.实验表明,该催化剂在温和条件下能有效催化卤代芳烃与芳基硼酸的Suzuki交叉偶联反应,该催化剂经回收重复利用5次后,仍具有较高的催化活性.
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| 关 键 词： | 纤维素 四乙烯五胺 纳米钯 负载型催化剂 Suzuki反应 |
Tetraethylenepentamine-functionalized cellulose supported nano-palladium for Suzuki reaction |
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| DU Qing-wei , ZHENG Chang-qing , LI Yi-qun. Tetraethylenepentamine-functionalized cellulose supported nano-palladium for Suzuki reaction[J]. Chemical Research and Application, 2012, 24(1): 63-68 |
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| Authors: | DU Qing-wei ZHENG Chang-qing LI Yi-qun |
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| Affiliation: | *(Department of Chemistry,Jinan University,Guangdong,Guangzhou 510632,China) |
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| Abstract: | Tetraethylenepentamine funtionalized cellulose(Cell-TEPA)was synthesized from epoxy cellulose and tetraethylenepentamine(TEPA).The prepared Cell-TEPA was used as a matrix to immobilize nanopalladium produced in situ by the reductive reaction of palladium chloride with 95%ethanol.The as-prepared catalyst(Cell-TEPA-Pd0)was characterized by IR,XRD,SEM,TEM,etc and as a catalyst for Suzuki reactions.The Cell-TEPA-Pd 0 catalyst was found to exhibit significant catalytic activity for Suzuki reactions under milder operating conditions.Furthermore,the catalyst reused for at least 5 cycles without losing its activities. |
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| Keywords: | cellulose tetraethylenepentamine nanopalladium supported catalyst Suzuki reaction |
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