Disubstituted phenanthrenes and their use in liquid-crystal mixtures
    1.
    发明申请
    Disubstituted phenanthrenes and their use in liquid-crystal mixtures 有权
    二取代菲及其在液晶混合物中的应用

    公开(公告)号:US20010023935A1

    公开(公告)日:2001-09-27

    申请号:US09761897

    申请日:2001-01-17

    摘要: Compounds of the formula (I) R1nullAnullZ1nullnull(1) in which: R1 is an alkyl radical having 1 to 8 carbon atoms or an alkenyl radical having 2 to 8 carbon atoms, where, in each case, one (nonterminal) nullCH2null group may also be replaced by nullOnull or nullC(nullO)Onull and/or one or more H may be replaced by F A is phenanthrene-2,7-diyl or 9,10-dihydrophenanthrene-2,7-diyl Z1 is F, OCHxF3-x or CHxF3-x, where, in each case, x is 0, 1 or 2, OC2HzF5-z or C2 HzF5-z, where, in each case, z is 0, 1, 2, 3 or 4, CHnullCF2 or Cl, with the proviso that 2-fluoro-7-methoxy-phenanthrene is excluded.

    摘要翻译: 式(I)化合物<段内式><内联式> R1-A-Z1(1)其中:R1为1〜8的烷基 碳原子或具有2至8个碳原子的烯基,其中在每种情况下,一个(非终端)-CH 2 - 基团也可以被-O-或-C(= O)O-代替,和/或一个或多个 H可以被FA替换为菲-2,7-二基或9,10-二氢菲-2,7-二基Z1是F,OCH x F 3-x或CH x F 3-x,其中,在每种情况下,x是0,1或 2,OC2HzF5-z或C2H5F5-z,其中,在每种情况下,z是0,1,2,3或4,CH = CF 2或Cl,条件是排除了2-氟-7-甲氧基菲 。

    Production of hexabromocyclododecane of enhanced gamma isomer content
    4.
    发明申请
    Production of hexabromocyclododecane of enhanced gamma isomer content 失效
    增加γ异构体含量的六溴环十二烷的生产

    公开(公告)号:US20020045783A1

    公开(公告)日:2002-04-18

    申请号:US09982708

    申请日:2001-10-18

    发明人: John K. Kendall

    IPC分类号: C07C023/18

    CPC分类号: C07C17/02 C07C23/02

    摘要: Hexabromocyclododecane with enhanced gamma isomer content is produced by brominating cyclododecatriene in a liquid medium comprised of (1) at least 50 wt % of at least one liquid inert organic solvent other than 1,4-dioxane having a solubility in water of at least 1 wt % at 25null C., and (2) water in an amount of up to about 40 wt %, in the presence of (3) about 0.5 to about 30 wt % of bromide ion (Brnull), each wt % being based on the total weight of the liquid portion of the liquid medium.

    摘要翻译: 具有增强的γ异构体含量的六溴环十二烷通过在液体介质中溴化环十二碳三烯而产生,所述液体介质包含(1)至少50重量%的至少一种在水中的溶解度至少为1重量%的除1,4-二恶烷之外的液体惰性有机溶剂 在(3)约0.5至约30重量%的溴离子(Br-)的存在下,(2)水的量高达约40重量%,每个重量%为基于 关于液体介质的液体部分的总重量。

    Fluorinated polycycles and their use in liquid-crystal mixtures
    5.
    发明申请
    Fluorinated polycycles and their use in liquid-crystal mixtures 有权
    氟化多环和它们在液晶混合物中的应用

    公开(公告)号:US20030072894A1

    公开(公告)日:2003-04-17

    申请号:US10215247

    申请日:2002-08-08

    申请人: Clariant GmbH

    摘要: Compounds of the formula (I) 1 in which: R1 is H, F, CF3, OCF3, OCF2H, OCFH2, an alkyl radical or an alkenyl radical; R2 is H, an alkyl radical or alkyloxy radical or an alkenyl or alkenyloxy radical; G2nullG1 is nullCHnullCHnull, nullCH2CH2null, nullCFnullCHnull, nullCHnullCFnull, nullCFnullCFnull, nullCH2null, nullCF2null; M1, M2 are each, independently of one another, nullC(nullO)Onull, nullOC(nullO)null, nullCH2Onull, nullOCH2null, nullOCF2null, nullCF2Onull, nullCnullCnull, nullCH2CH2null, nullCF2CF2null or a single bond; A1, A2 are each, independently of one another, phenylene-1,4-diyl, unsubstituted, monosubstituted or disubstituted by F, cyclohexane-1,4-diyl, 1,3-dioxan-2,5-diyl; m, n are each, independently of one another, zero or 1; mnullnnull0 or 1; The invention furthermore provides a liquid-crystal mixture comprising one or more compounds of the formula (I) in an amount of 1 to 40% by weight, based on the liquid-crystal mixture and liquid-crystal displays containing this liquid-crystal mixture.

    摘要翻译: 式(I)的化合物,其中:R1是H,F,CF3,OCF3,OCF2H,OCFH2,烷基或烯基; R2是H,烷基或烷氧基或链烯基或烯氧基; G2-G1是-CH = CH-,-CH2CH2-,-CF = CH-,-CH = CF-,-CF = CF-,-CH2-,-CF2-; -C(= O)O-,-OC(= O) - , - CH 2 O - , - OCH 2 - , - OCF 2 - , - CF 2 O-,-C = C-, -CH 2 CH 2 - , - CF 2 CF 2 - 或单键; A1,A2各自独立地为F,环己烷-1,4-二基,1,3-二恶烷-2,5-二基的未取代的,单取代或二取代的亚苯基-1,4-二基; m,n各自独立地为0或1; m + n = 0或1; 本发明还提供了一种液晶混合物,其包含一种或多种式(I)化合物,其量为1至40重量%,基于液晶混合物和含有该液晶混合物的液晶显示器。