高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (5): 713.

• 论文 • 上一篇    下一篇

1,2-双(四甲基环戊二烯基)四甲基二硅烷与六碳基钼的反应

邓小斌, 徐善生, 周秀中   

  1. 南开大学化学系, 南开大学元素有机化学国家重点实验室, 天津 300071
  • 收稿日期:1999-07-09 出版日期:2000-05-24 发布日期:2000-05-24
  • 通讯作者: 周秀中(1924年出生),男,教授,博士生导师,从事金属有机化学研究.
  • 基金资助:

    国家自然科学基金(批准号:29972023);教育部博士点专项基金(批准号:9505502)

Reaction of 1,2-Bis (tetramethylcyclopentadienyl )tetramethyldisilane with Hexacarbonyl Molybdenum

DENG Xiao-Bin, XU Shan-Sheng, ZHOU Xiu-Zhong   

  1. Department of Chemistry, Nankai Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
  • Received:1999-07-09 Online:2000-05-24 Published:2000-05-24

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摘要： 1,2-双(四甲基环戊二烯基)四甲基二硅烷与正丁基锂作用生成(四甲基二硅撑)双(四甲基环戊二烯基负离子盐),后者随即与六碳基钼反应形成1,1'-(四甲基二硅撑)双(四甲基环戊二烯基铝负离子盐)-(Me2SiSiMe2)[Me4CpMo(CO)3-Li+]2(I),I与冰醋酸作用,随即分别与CCl4,NBS及I2反应,生成相应的铝卤化合物(Me2SiSiMe2)[Me4CpMo(CO)3X]2[X=Cl(1),Br(2),I(3)].I与CH3I反应,在钼原子上发生烃基化,得到产物(Me2SiSiMe2)[Me4CpMo(CO)3Me]2(4);I与单质I2直接反应,生成脱硅桥产物Me4Cp(CO)>3I(5).经元素分析、IR及1HNMR表征了化合物1-5的结构。

关键词: 1, 2-双(四甲基环戊二烯基)四甲基二硅烷, 桥连双核钼化合物, 脱硅基作用

Abstract: 1,2-Bis(tetramethylcylclopentadie reacted sequentially with n-BuLi and Mo(CO)6 to generate 1,1'-(tetramethyldisilandiyl ) bis [tetramethylcyclo-pentadienyltricarbony bdenum anion salt], (Me2SiMe2Si) [Me4CPMo(CO)3-Li+] (I). The further reaction of Iwith acetic acid, followed by halogenation with CCl4, NBSor I2 respectively yielded the corresponding molybdenum-halogen derivatives, (Me2SiMe2Si) [Me4CpMo(CO)3X]2, [X=Cl(1), Br(2), I (3)]. The reaction of compound Iwith MeIyielded the methylmolybdenum complex (Me2SiMe2Si ) [Me4CpMo (CO )3Me]2, (4). Strangely, the reaction of Idirectly with I2 gave the desilanyl product Me4CpMo(CO)3I(5). The molecular structures of compound 1-5 were characterized by elemental analyses, IRand 1H NMRspectra.

Key words: 1,2-Bis (tetramethylcylclopentadienyl) tetramethyldisilane, Bridged bisnuclear molybdenum compound, Desilylation

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