Silylated benzoic acid derivatives II
    41.
    发明授权
    Silylated benzoic acid derivatives II 失效
    苯乙烯酸衍生物II

    公开(公告)号:US5158702A

    公开(公告)日:1992-10-27

    申请号:US542130

    申请日:1990-06-22

    摘要: The present invention relates to compounds of the formula ##STR1## in which Z is a radical bonded to the benzene ring in the 2-, 3-, 5- or 6-position, namely a halogen atom, a cyano group or a hydroxyl group,n is 0, 1 or 2,R" is a radical of the formulaR'''--[Si(R*).sub.2 ](CH.sub.2).sub.y R""-- (9), in whichY is an integer from 4 to 18,R''' is as defined in the description,R* is identical or different, optionally substituted C.sub.1 - to C.sub.18 -hydrocarbon or hydrocarbonoxy radicals,R"" is a radical of the formula --(E).sub.z -- which is optionally bonded to the carboxy group via a phenylene or biphenylene radical, whereE is a divalent radical of the formula --O-- or --Si(R*).sub.2 --, andZ is the number 0 or 1, and the radicalR' is a halogen atom, a cyano radical, a cholesteryl radical, a radical as defined for R* or of the formula --C.sub.6 H.sub.4 --R**, andR** may have any meaning of R*, with the exception of an n-octyloxy or an n-decyloxy radical,and the preparation and use thereof.

    摘要翻译: 本发明涉及式(VIII)的化合物,其中Z是在2-,3-,5-或6-位上与苯环键合的基团,即卤素原子,氰基或 羟基,n为0,1或2,R“为式R”' - [Si(R *)2](CH 2)y R“' - (9)的基团,其中Y 是4至18的整数,R“如说明书中所定义,R *相同或不同,任选取代的C 1至C 18烃或烃氧基,R”'是下式的基团 - (E)z-,其任选地通过亚苯基或亚联苯基与羧基键合,其中E是式-O-或-Si(R *)2 - 的二价基团,Z是数字0或1 ,并且基团R'是卤素原子,氰基,胆甾醇基,如R *或式-C 6 H 4 -R **所定义的基团,R **可具有任何R *的含义,与 正辛氧基或正癸氧基除外,其制备和用途。

    Method for preparing hexamethylcyclotrisiloxane and uses for the same
    42.
    发明授权
    Method for preparing hexamethylcyclotrisiloxane and uses for the same 失效
    制备六甲基环三硅氧烷的方法及用途

    公开(公告)号:US4620023A

    公开(公告)日:1986-10-28

    申请号:US524009

    申请日:1983-08-17

    摘要: Hexamethylcyclotrisiloxane is prepared by heating linear, branched, or cross-linked organopolysiloxanes containing at least 50 mol percent of dimethylsiloxane units to at least 350.degree. C. in the absence of substances which attack the siloxane group during heating and simultaneously distilling off the cyclic dimethylpolysiloxanes thus formed.The hexamethylcyclotrisiloxane thus prepared is an excellent carrier for fragrant materials, especially where the carrier is present in admixture with other carrier substances such as tetramethylcyclobutanedione.

    摘要翻译: 六甲基环三硅氧烷是通过将含有至少50mol%的二甲基硅氧烷单元的直链,支链或交联的有机聚硅氧烷加热至至少350℃而制备的,所述有机聚硅氧烷在加热过程中不存在侵蚀硅氧烷基团的物质,同时蒸馏掉环状二甲基聚硅氧烷 形成。 由此制备的六甲基环三硅氧烷是用于芳香物质的优异载体,特别是其中载体与其它载体物质如四氢环丁烷二酮混合存在时。