有机膦支持的低价钴对二茂铁甲醛缩萘胺C-H键的活化研究  

Activation of C-H bond in 1,1'-ferrocene derived Schiff base by cobalt(Ⅰ) complex supported by trimethylphosphine

作　　者：王其宝[1] 李晓燕[2] 

机构地区：[1]济宁医学院药学院,山东日照252000 [2]山东大学化学与化工学院,山东济南250100

出　　处：《济宁医学院学报》2012年第5期328-330,共3页Journal of Jining Medical University

基　　金：山东省教育厅基金（J10LB63）;济宁医学院科研发展计划重点基金项目的支持.

摘　　要：目的利用有机膦支持的低价钴配合物对二茂铁Schiff碱衍生物C-H键活化进行研究。方法采用标准的Schlenk无水无氧操作技术,常温下利用(四甲基膦)甲基钴同二茂铁单甲醛缩萘氨反应,得到了一种新型的异双核的化合物,并利用IR,1 H NMR以及X-ray单晶衍射对目标化合物进行了表征。结果显示该化合物属于单斜晶系,P21/n空间群,晶胞参数a=10.692(2),b=14.273(3),c=19.719(4),β=99.58(3)°;中心钴原子与3个磷原子、亚氨基氮原子以及萘环上的碳原子成键,呈5配位的三角双锥几何构型。结论利用有机膦支持的低价钴配合物成功实现了二茂铁甲醛缩萘胺sp2杂化的C-H键的活化。Objective To investigate the activation of the C-H bond of N-naphthyl ferrocenylideneamine with CoMeL4（L=PMe3）.Methods and Results Reaction of N-naphthyl ferrocenylideneamine with CoMeL4（L=PMe3）affords a new compounds,η2-（1-N-naphthylferrocenylideneamine）tris（trimethylphosphine）cobalt（Ⅰ）,which has been characterized by IR,1H NMR spectra,and the crystal structure has been determined by means of X-ray diffraction,as far as our knowledge it is the first example of C-H activation in ferrocenylideneamine by electron-rich cobalt complexes.The crystal structure crystallized in monoclinic with the space group P21/n,a=10.692（2）,b=14.273（3）,c=19.719（4）,β= 99.58（3）°.The cobalt atom is penta-coordinate in a trigonal bipyramidal geometry,with two phosphrous atoms and the imino group occupying the equatorial positions,and another phosphrous atom and the carbon atom of the naphthyl group taking the axial position.Conclusion A new Fe-Co binuclear complex was synthesized by C-H activation.

关 键 词：C-H键活化 希夫碱 二茂铁 单晶结构 

分 类 号：O621.3[理学—有机化学]