| 木质素-四乙烯五胺负载钯配合物的制备及对Suzuki反应的催化性能 |
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| 引用本文： | 薛蔓,张士真,吴玉锋,刘剑,崔元臣.木质素-四乙烯五胺负载钯配合物的制备及对Suzuki反应的催化性能[J].应用化学,2010,27(7):787-791. |
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| 作者姓名： | 薛蔓 张士真 吴玉锋 刘剑 崔元臣 |
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| 作者单位： | (1.河南大学特种功能材料重点实验室 开封 475004；2.开封教育学院 开封;
3.商丘技师学院 商丘) |
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| 基金项目： | 河南省自然科学基金资助项目 |
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| 摘 要： | 采用较温和的Mannich反应制得了木质素-四乙烯五胺,并以其为载体通过简单的方法制备了木质素-四乙烯五胺负载钯催化剂。利用TG、DTA和XPS等测试技术对其结构进行了表征。该催化剂对碘苯与四苯硼钠的Suzuki反应有较好的催化活性,在80℃下空气氛围中反应8h,以V(DMF)∶V(H2O)=2∶1混合液为溶剂,NaHCO3为碱时,反应产率高达90.2%。催化剂可以通过简单的方法回收但重复使用性能有一定下降,重复使用4次后产率降至31.3%。
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| 关 键 词： | 木质素 钯 负载型催化剂 Suzuki反应 |
| 收稿时间： | 2009-08-31 |
| 修稿时间： | 2009-11-10 |
Synthesis of Lignin-tetraethylenepentamine Palladium Complex and Its Catalytic Properties for Suzuki Reaction |
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| XUE Man,ZHANG Shi-Zhen,WU Yu-Feng,LIU Jian,CUI Yuan-Chen.Synthesis of Lignin-tetraethylenepentamine Palladium Complex and Its Catalytic Properties for Suzuki Reaction[J].Chinese Journal of Applied Chemistry,2010,27(7):787-791. |
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| Authors: | XUE Man ZHANG Shi-Zhen WU Yu-Feng LIU Jian CUI Yuan-Chen |
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| Institution: | (1.Key Laboratory for Special Functional Materials,Henan University,Kaifeng 475004;
2.Kaifeng Institute of Education,Kaifeng;
3.Shangqiu Technician School,Shangqiu) |
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| Abstract: | Lignin tetraethylenepentamine was synthesized from Lignin and tetraethylenepentamine(TEPA) with formaldehyde as a cross linking agent by Mannich reaction. The prepared complex was used as a matrix to support palladium chloride. Lignin-TEPA-Pd complex was characterized by XPS, TG and DTA, which was an efficient catalyst for the Suzuki reaction of iodobenzene with sodium tetra phenylboron. The yield of the product was up to 90.2% when the reaction was carried out at 80 ℃ in air for 8 h with V(DMF)∶V(H2O)=2∶1 mixture as the solvent and NaHCO3 as the base. The catalyst could be separated easily, but the yield of product decreased to 31.3% after 4 times reusage. |
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| Keywords: | lignin palladium supported catalyst Suzuki reaction |
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