Preparation of polysilane oligomers
    41.
    发明授权
    Preparation of polysilane oligomers 失效
    聚硅烷低聚物的制备

    公开(公告)号:US5336798A

    公开(公告)日:1994-08-09

    申请号:US32109

    申请日:1993-03-17

    IPC分类号: C07F7/08 C08G77/60

    CPC分类号: C08G77/60 C07F7/0896

    摘要: There is disclosed a method for preparing a polysilane oligomer having a terminal SiH group represented by the structural formula (1): ##STR1## wherein R.sup.1 to R.sup.4 are monovalent hydrocarbon groups with proviso that at least one of R.sup.1 to R.sup.4 is an aryl group, n and m are integers of 1 or more, and n+m is equal to 3, 4, 5 or 6 comprising the step of reacting a disilane of the structural formula (2): ##STR2## wherein R.sup.1 to R.sup.4 are as defined above in the presence of a Group VIII transition metal complex catalyst.

    摘要翻译: 公开了一种制备具有由结构式(1)表示的末端SiH基团的聚硅烷低聚物的方法:其中R 1至R 4为单价烃基,条件是R 1至R 4中的至少一个为 芳基,n和m是1以上的整数,n + m等于3,4,5或6,包括使结构式(2)的乙硅烷反应的步骤:其中R1 至R 4如上述在VIII族过渡金属络合物催化剂存在下所定义。

    Organic silicon compounds and method for making
    42.
    发明授权
    Organic silicon compounds and method for making 失效
    有机硅化合物及其制备方法

    公开(公告)号:US5233068A

    公开(公告)日:1993-08-03

    申请号:US978543

    申请日:1992-11-19

    IPC分类号: C07F7/08 C07F7/21

    CPC分类号: C07F7/0841 C07F7/21

    摘要: Novel cyclic organic silicon compounds of formula (1) can be synthesized in high yields and high purity by reacting a dichlorosilane of formula (3) with a cyclotrisiloxane of formula (4) in an aprotic polar solvent to form an .alpha.,.omega.-dichlorosiloxane of formula (2), and reacting the .alpha.,.omega.-dichlorosiloxane with an alkali metal according to the following reaction scheme. ##STR1##

    摘要翻译: 式(1)的新型环状有机硅化合物可以通过在非质子传递极性溶剂中使式(3)的二氯硅烷与式(4)的环三硅氧烷反应,以高产率和高纯度合成,形成α,ω-二氯硅氧烷 式(2)的化合物,并使α,ω-二氯硅氧烷与碱金属反应。 + TR

    Preparation of polyorganosilanes
    43.
    发明授权
    Preparation of polyorganosilanes 失效
    聚有机硅烷的制备

    公开(公告)号:US5159043A

    公开(公告)日:1992-10-27

    申请号:US812279

    申请日:1991-12-23

    IPC分类号: C08G77/48 C08G77/60

    CPC分类号: C08G77/60

    摘要: Polyorganosilanes are prepared through contact reaction of an organodihalosilane with alkali metal fine particles dispersed in an organic solvent. the reaction solution is adjusted to an acidity of pH 3 to 7 before or after the step of deactivating the excess alkali metal in the reaction solution. The alkali metal halide is removed from the reaction solution by dissolving it in water. Formation of insoluble components is minimized.

    摘要翻译: 聚有机硅烷通过有机二卤硅烷与分散在有机溶剂中的碱金属微粒的接触反应制备。 在使反应溶液中过量的碱金属失活的步骤之前或之后将反应溶液调节至pH 3至7的酸度。 将碱金属卤化物溶解在水中从反应溶液中除去。 不溶性组分的形成最小化。