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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Controlled Synthesis and Molecular Structures of Methoxy-, Amino-, and Chloro-Functionalized Disiloxane Building Blocks
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Controlled Synthesis and Molecular Structures of Methoxy-, Amino-, and Chloro-Functionalized Disiloxane Building Blocks

机译:甲氧基,氨基和氯官能化二硅氧烷构建块的受控合成及分子结构

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摘要

Functionalized disiloxane units with defined structures are interesting molecular models for investigating the reactivity and chemoselectivity in transformations that are of interest in synthesis, surface chemistry, and materials science. (Mes)PhSi(OMe)_2 (1) (Mes = mesityl) and (Mes)PhSiCl_2 (5) were chosen as starting compounds for the controlled synthesis of methoxy-, amino-, and chlorofunctionalized unsymmetric disiloxanes. Two synthesis routes towards (Mes)PhSi(OMe)(OSiPh_3) (3) were followed, one via the aminomethoxysilane (Mes)PhSi(OMe)(NC_4H_8) (2) and the other via the chlorodisiloxane (Mes)PhSiCl(OSiPh_3) (6). The amino-substituted disiloxane (Mes)PhSi(NC_4H_8)(OSiPh_3) (4) was obtained from the chloro derivative 6 with N-pyrrolidinyllithium, but the same reaction starting from compound 3 was not successful. All provided disiloxanes were structurally characterized by X-ray crystallography.
机译:具有特定结构的官能化二硅氧烷单元是研究合成、表面化学和材料科学感兴趣的转化反应性和化学选择性的有趣分子模型。选择(Mes)PhSi(OMe)_2(1)(Mes=均三甲苯)和(Mes)PhSiCl_2(5)作为起始化合物,用于控制合成甲氧基、氨基和氯官能化不对称二硅氧烷。遵循两条通向(Mes)PhSi(OMe)(OSiPh_3)(3)的合成路线,一条是通过氨基甲氧基硅烷(Mes)PhSi(OMe)(NC_4H_8)(2),另一条是通过氯二硅氧烷(Mes)PhSiCl(OSiPh_3)(6)。氨基取代二硅氧烷(Mes)PhSi(NC_4H_8)(OSiPh_3)(4)是从氯代衍生物6与N-吡咯烷酰锂中获得的,但从化合物3开始的相同反应并不成功。所有提供的二硅氧烷均通过X射线晶体学进行结构表征。

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