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第 37 卷第 2 期 精 细 化 工 Vol.37, No.2
202 0 年 2 月 FINE CHEMICALS Feb. 2020
催化与分离提纯技术
二茂铁烯丙基钯卡宾络合物的合成及其催化性能
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穆 兵 1,3 ,李敬亚 ,吴养洁
(1. 郑州师范学院 化学化工学院,河南 郑州 450044;2. 郑州药领医药科技有限公司,河南 郑州
450052;3. 郑州大学 化学与分子工程学院,河南 郑州 450052)
摘要:采用“一锅法”用 1, 3-双(2, 6-二异丙基苯基)氯化咪唑 对二茂铁烯丙基钯二聚体Ⅰ在室温下进行解
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聚,不仅简便、高效地合成了二茂铁烯丙基钯卡宾络合物Ⅱ,而且避免了使用不稳定的卡宾。通过 IR、 HNMR、
13 CNMR、MS、HRMS 和 X 射线单晶衍射对其结构进行鉴定。络合物Ⅱ对空气和湿气稳定,且对芳基氯代物参与
的 Suzuki-Miyaura 偶联反应和 Buchwald-Hartwig 胺化反应展现较高的催化活性。在反应温度 70 ℃、0.4%(以
氯代芳烃物质的量为基准计算得到,下同)络合物Ⅱ催化芳基氯代物与芳基硼酸的偶联反应时,产物收率为
92%~100%;在反应温度 100 ℃、0.5%络合物Ⅱ催化氯苯与多样化胺的偶联反应时,获得 38%~99%的收率。
关键词:Suzuki-Miyaura 偶联反应;Buchwald-Hartwig 胺化反应;芳基氯代物;氮杂环卡宾;二茂铁烯丙基钯
卡宾络合物;催化技术
中图分类号:O621.251;O641.4 文献标识码:A 文章编号:1003-5214 (2020) 02-0317-06
Synthesis and catalytic properties of a ferrocenyl
allyl carbene palladium complex
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1,3
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Mu Bing , Li Jingya , Wu Yangjie
(1. College of Chemistry and Chemical Engineering, Zhengzhou Normal University, Zhengzhou 450044, Henan, China;
2. Leadmedpharm Co., Ltd., Zhengzhou 450052, Henan, China; 3. College of Chemistry and Molecular Engineering,
Zhengzhou University, Zhengzhou 450052, Henan, China)
Abstract: One pot method was used to depolymerize ferrocenyl allyl palladium dimer Ⅰ with 1, 3-bis (2,
6-diisopropylphenyl) imidazolium chloride (IPrHCl) at room temperature, which was not only simple and
efficient to synthesize a new ferrocene allyl carbene palladium complex Ⅱ, (N-heterocyclic carbene) Pd
(ferrocenyl-allyl)Cl, but also avoided the use of unstable carbene. The complex Ⅱ was characterized by IR,
1 HNMR, CNMR, MS, HRMS and X-ray single crystal diffraction. Complex Ⅱ is stable to air and
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moisture, and displays high catalytic activities for Suzuki-Miyaura coupling reaction and Buchwald-
Hartwig amination of aryl chlorides. When the coupling reactions between different aryl chlorides and
different aryl boric acid were carried at 70 ℃ using molar fraction 0.4% (based on the dosage of aryl
chlorides, the same below) of complex Ⅱ, the yields of the products were 92%~100%. At 100 ℃, the
coupling reactions of chlorobenzene with various amines in the presence of 0.5% complex Ⅱ gave the
products in yields of 38%~99%.
Key words: Suzuki-Miyaura coupling reaction; Buchwald-Hartwig amination; aryl chlorides; N-heterocyclic
carbene; ferrocenyl allyl carbene palladium complex; catalysis technology
钯催化的交叉偶联反应,尤其是 Suzuki-Miyaura 大地促进了现代有机合成化学的发展,并且该法已
偶联反应和 Buchwald-Hartwig 胺化反应是现代有机 在全球的科研、医药开发与生产、发光材料和电子
合成中形成碳碳单键、碳杂单键最有效的方法,极 工业材料等领域得到了广泛地应用 [1-2] 。
收稿日期:2019-09-13; 定用日期:2019-11-25; DOI: 10.13550/j.jxhg.20190867
基金项目:国家自然科学基金(21702191);河南省科技攻关项目(172102210555)
作者简介:穆 兵(1982—),女,副教授,E-mail:mubing_2006@126.com。