| KF改性负载铜催化剂在Heck反应上的应用 |
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| 引用本文： | 张胜建,应丽艳,张洪. KF改性负载铜催化剂在Heck反应上的应用[J]. 应用化学, 2010, 27(5): 549-552. DOI: 10.3724/SP.J.1095.2010.90439 |
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| 作者姓名： | 张胜建 应丽艳 张洪 |
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| 作者单位： | (浙江大学宁波理工学院 宁波 315100) |
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| 摘 要： | KF水溶液浸渍MgO或ZnO载体为改性载体制备了负载铜催化剂,以卤苯与丙烯酸正丁酯的反应为模型,考察了对Heck反应的催化性能。结果表明,对碘苯与丙烯酸正丁酯的Heck反应的催化性能,未改性催化剂基本没有活性,而改性后,10%Cu/5%KF/ZnO、20%Cu/10%KF/ZnO催化剂的催化转化率为100%和反式异构体的选择性为98%以上。改性催化剂10%Cu/5%KF/ZnO对于对-硝基溴苯与丙烯酸正丁酯的Heck反应的转化率为34.3%。该催化剂重复使用4次仍有较高催化活性,如20%Cu/10%KF/ZnO为65.4%。催化剂的XRD分析表明,改性剂的加入可提高催化剂表面CuO的含量而提高催化性能。
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| 关 键 词： | Heck反应 改性负载铜催化剂 丙烯酸正丁酯 碘苯 KF |
| 收稿时间： | 2009-07-07 |
| 修稿时间： | 2009-08-24 |
Application of KF-Modified Supported Cu Catalysts to Heck Reaction |
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| ZHANG Sheng-Jian,YIN Lian-Yan,ZHANG Hong. Application of KF-Modified Supported Cu Catalysts to Heck Reaction[J]. Chinese Journal of Applied Chemistry, 2010, 27(5): 549-552. DOI: 10.3724/SP.J.1095.2010.90439 |
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| Authors: | ZHANG Sheng-Jian YIN Lian-Yan ZHANG Hong |
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| Affiliation: | (Ningbo Institute of Technology,Zhejiang University,Ningbo 315100) |
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| Abstract: | The novel catalysts of Cu supported on ZnO,MgO modified with KF were prepared by the conventional impregnation method,and applied for the first time to the Heck reactions of iodobenzene with n-butyl acrylate as a model reaction.The results indicate that little conversion of iodobenzene was observed on unmodified carrier supported catalysts;and a conversion of 100% and a selectivity of above 98% to trans-isomers were found over 10%Cu/5%KF/ZnO,20%Cu/10%KF/ZnO.The conversion of p-nitrobromobenzene could reach ... |
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| Keywords: | KF |
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