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    Synthesis of tetraalkylsilanes
    1.
    发明授权
    Synthesis of tetraalkylsilanes 失效
    四烷基硅烷的合成

    公开(公告)号：US5177235A

    公开(公告)日：1993-01-05

    申请号：US897096

    申请日：1992-06-11

    申请人： David C. Eisenberg ,  Gene C. Robinson

    发明人： David C. Eisenberg ,  Gene C. Robinson

    IPC分类号： C07F7/08

    CPC分类号： C07F7/0801 ,  C07F7/0827

    摘要： This invention relates to a process for preparing tetrahydrocarbylsilane in high yield, comprising: a) forming a reaction mass from molten metal and trihydrocarbylaluminum, in an hydrocarbon solvent under an inert gas atmosphere; b) maintaining the reaction mass at a temperature in the range of from about 100.degree. to about 130.degree. C. for a period of time sufficient to form sodium tetrahydrocarbylaluminate; c) contacting the sodium tetrahydrocarbylaluminate with organotrihalosilane; and d) heating the contacted tetrahydrocarbylaluminate and organotrihalosilane to a temperature and for a period of time sufficient to form the tetrahydrocarbylsilane, wherein the tetrahydrocarbylaluminate and tetrahydrocarbylsilane are formed at a pressure of less than about 3000 KPa and wherein the hydrocarbyl group of the tetrahydrocarbyl silane is one or a mixture of hydrocarbyl groups having less than about 8 carbon atoms each.

    摘要翻译： 本发明涉及一种以高产率制备四烃基硅烷的方法，包括：a）在惰性气体气氛下，在烃溶剂中由熔融金属和三烃基铝形成反应物质; b）将反应物质保持在约100℃至约130℃的温度下一段足以形成四羧基铝酸钠的时间; c）使四烃基铝酸钠与有机三卤代硅烷接触; 和d）将接触的四烃基铝酸盐和有机三卤代硅烷加热至足以形成四氢碳酰基硅烷的温度和一段时间，其中四烃基铝酸盐和四烃基硅烷在小于约3000KPa的压力下形成，其中四烃基硅烷的烃基是 一个或每个具有小于约8个碳原子的烃基的混合物。

    Process for preparing trimethylaluminum
    4.
    发明授权
    Process for preparing trimethylaluminum 失效
    制备三甲基铝的方法

    公开(公告)号：US5543537A

    公开(公告)日：1996-08-06

    申请号：US436695

    申请日：1995-05-08

    申请人： David C. Eisenberg ,  Milind M. Pradhan ,  Milham S. Howie

    发明人： David C. Eisenberg ,  Milind M. Pradhan ,  Milham S. Howie

    IPC分类号： C07F5/06

    CPC分类号： C07F5/063

    摘要： Trimethylaluminum is made by an alkyl exchange process by first reacting a trialkylaluminum which has at least two carbon atoms in its alkyl groups with a methyl halide, optionally in the presence of an alkyl exchange catalyst, and then fractionally distilling trimethylaluminum from the product mixture in the presence of trialkylaluminum having at least two carbon atoms in its alkyl groups so as to convert the dimethylaluminum halide by-product of the alkyl exchange reaction into trimethylaluminum.

    摘要翻译： 三甲基铝是通过烷基交换方法制备的，首先使烷基中具有至少两个碳原子的三烷基铝与甲基卤反应，任选在烷基交换催化剂存在下，然后从产物混合物中分馏出三甲基铝 存在其烷基中具有至少两个碳原子的三烷基铝，以便将烷基交换反应的二甲基卤化铝副产物转化为三甲基铝。