高等学校化学学报 ›› 2013, Vol. 34 ›› Issue (11): 2511.doi: 10.7503/cjcu20130254

• 有机化学 • 上一篇    下一篇

二茂铁基功能化的氮杂环卡宾银配合物的合成及催化活性

李强1,2, 孙宝川1, 宋海斌1, 唐良富1   

  1. 1. 南开大学化学系, 元素有机化学国家重点实验室, 天津 300071;
    2. 内蒙古民族大学化学化工学院, 通辽 028043
  • 收稿日期:2013-03-19 出版日期:2013-11-10 发布日期:2013-04-19
  • 作者简介:唐良富,男,博士,教授,主要从事金属有机化学研究,E-mail:lftang@nankai.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20972075)资助.

Synthesis and Catalytic Activity of Ferrocenyl-substituted N-Heterocyclic Carbene Silver Complexes

LI Qiang1,2, SUN Bao-Chuan1, SONG Hai-Bin1, TANG Liang-Fu1   

  1. 1. Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China;
    2. College of Chemistry and Chemical Engineering, Inner Mongolia University for Nationalities, Tongliao 028043, China
  • Received:2013-03-19 Online:2013-11-10 Published:2013-04-19

摘要:

通过N-二茂铁基甲基-N-吡啶基甲基咪唑盐与氧化银在相转移催化条件下反应, 合成了4个二茂铁基功能化的氮杂环卡宾银配合物(NHC)2AgX(X=PF6或BF4), 并利用NMR及X-射线单晶衍射对其结构进行了表征. 在这4个化合物中, 银为二配位结构, 吡啶氮原子并未参与配位. 催化活性测试结果表明, 合成的4个化合物具有高的催化炔、 醛和胺三组分偶联反应活性.

关键词: 二茂铁, 氮杂环卡宾, 银, 催化活性

Abstract:

Ferrocenyl-substituted N-heterocyclic carbene(NHC) transition metal complexes have received considerable attention in recent years due to their extensive applications in homogenous catalysis or electrochemical investigation. In this work, four NHC-silver complexes(NHC)2AgX(X=PF6 or BF4) were synthesized by the reactions of N-ferrocenylmethyl-N'-(pyridylmethyl)imidazolium salts with Ag2O under the phase transfer catalytic conditions, and were characterized by elemental analysis, NMR and single-crystal X-ray crystallographic analysis. The silver atom in four complexes showed a two-coordinated linear structure. The pyridyl nitrogen atom didn't take part in the coordination to the silver center. Those complexes exhibited highly effective catalytic activity in the three-component coupling reaction of aldehyde, alkyne and amine.

Key words: Ferrocene, N-Heterocyclic carbene, Silver, Catalytic activity

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