| Pd/MCM-41催化碘苯Ullmann偶合制备联苯 |
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| 引用本文： | 朱凤霞,万颖,李和兴.Pd/MCM-41催化碘苯Ullmann偶合制备联苯[J].化学研究与应用,2005,17(3):403-405. |
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| 作者姓名： | 朱凤霞 万颖 李和兴 |
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| 作者单位： | 上海师范大学化学系,上海,200234;上海师范大学化学系,上海,200234;上海师范大学化学系,上海,200234 |
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| 基金项目： | 国家自然科学基金资助项目(20377031)，上海市启明星计划资助项目 |
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| 摘 要： | 联苯是一种重要的有机合成中间体，广泛应用于超分子、高性能染料和药物活性剂以及有机导体和半导体的生产中。目前，联苯的合成方法主要有Ullmann偶合反应、Stille反应、Heek反应、Suzuk反应和Sonogashira反应等。其中，Ullmann偶合反应由于成本低且简单易操作而倍受青睐。最早采用Cu-基催化剂，但需要在高温下进行，反应条件相当苛刻。采用Pd-基均相催化剂可大大降低反应温度，
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| 关 键 词： | Pd/MCM-41 Ullmann偶联反应 碘苯 联苯 |
| 文章编号： | 1004-1656(2005)03-0403-03 |
| 修稿时间： | 2004年11月4日 |
Ullmann coupling reaction of iodobenzene to biphenyl over a Pd/MCM - 41 catalyzed |
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| ZHU Feng-xia,WAN Ying,LI He-xing.Ullmann coupling reaction of iodobenzene to biphenyl over a Pd/MCM - 41 catalyzed[J].Chemical Research and Application,2005,17(3):403-405. |
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| Authors: | ZHU Feng-xia WAN Ying LI He-xing |
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| Institution: | ZHU Feng-xia,WAN Ying,LI He-xing~* |
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| Abstract: | The nanostructured mesoporous Pd/MCM-41 catalyst was prepared by impregnation.This catalyst exhibited high activity and selectivity to piphenyl during Ullmann coupling reaction of iodobenzene.With Pd loading of 12%,the biphenyl yield may reach 50%,showing its good potential to match the homogeneous catalyst in traditional Ullmann coupling reactions.Based on BET and XRD etc.characterizations,the relationship between the excellent catalytic properties of the Pd/MCM-41 and its structural characteristics was discussed briefly. |
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| Keywords: | Pd/MCM-41 Ullmann coupling reaction iodobenzene biphenyl |
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