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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
Reaction of 1,2-Bis (tetramethylcyclopentadienyl )tetramethyldisilane with Hexacarbonyl Molybdenum
【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1H NMR表征了化合物 1-5的结构.
【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 I with acetic acid, followed by halogenation with CCl4, NBS or I2 respectively yielded the corresponding molybdenum-halogen derivatives, (Me2SiMe2Si) [Me4CpMo(CO)3X]2, [X=Cl(1), Br(2), I (3)]. The reaction of compound I with MeI yielded the methylmolybdenum complex (Me2SiMe2Si ) [Me4CpMo (CO )3Me]2, (4 ). Strangely, the reaction of I directly with I2 gave the desilanyl product Me4CpMo(CO)3I(5). The molecular structures of compound 1-5 were characterized by elemental analyses, IR and 1H NMR spectra.
【Key words】 1, 2-Bis (tetramethylcylclopentadienyl) tetramethyldisilane; Bridged bisnuclear molybdenum compound; Desilylation;
- 【文献出处】 高等学校化学学报 ,CHEMICAL RESEARCH IN CHINESE UNIVERSITIES , 编辑部邮箱 ,2000年05期
- 【分类号】O627
- 【下载频次】46