Fluorinated fluorene derivatives
    8.
    发明授权
    Fluorinated fluorene derivatives 有权
    氟化芴衍生物

    公开(公告)号:US07087272B2

    公开(公告)日:2006-08-08

    申请号:US10473332

    申请日:2002-03-07

    摘要: The invention relates to fluorinated fluorene derivatives of negative DC anisotropy, of the formula I R1—(—A1—Z1—)k1—(—A2—Z2—)k2—W—(—Z3—A3—)k3—(—Z4—A4—)k4—R2I in which W denotes the sub-formula L1 and L2, independently of one another, are H, F, Cl, —CH2F, —CHF2 or —CF3, with the proviso that L1 and L2 are not both H, L3 and L4, independently of one another, are H or F, and R1, R2, A1, A2, A3, A4, Z1, Z2, Z3, Z4, k1, k2, k3 and k4 are as defined above. The invention furthermore relates to liquid-crystalline media and to optical and electro-optical display elements.

    摘要翻译: 本发明涉及负直流各向异性的氟化芴衍生物,式I <βin-line-formula description =“In-line Formulas”end =“lead”?> R 1 - ( - - - - - - - - - - - - - - - - - - ( - 2 - - - - - - - - - - - - - - - - - - - - - - ( - Z - SUP> 4 4 其中W表示子公式L 1和L 2彼此独立的“公式”end =“tail”?>是H,F,Cl, -CH 2 2 F,-CHF 2或-CF 3 3,条件是L 1和L 2, SUP> 2 不是H,L 3和L 4都彼此独立地是H或F,R 1, SUP>,R 2 2,A 1,A 2,A 3,A 4, Z 1,Z 1,Z 2,Z 3,Z 4,K 1,K 2,K 3和K 4 如上所述。 本发明还涉及液晶介质和光学和电光显示元件。

    2, 5-SELENOPHENE DERIVATIVES AND 2, 5-TELLUROPHENE DERIVATIVES
    9.
    发明申请
    2, 5-SELENOPHENE DERIVATIVES AND 2, 5-TELLUROPHENE DERIVATIVES 有权
    2,5-SELENOPHENE衍生物和2,5-苯氧基衍生物

    公开(公告)号:US20100216986A1

    公开(公告)日:2010-08-26

    申请号:US12676646

    申请日:2008-08-07

    IPC分类号: C07D345/00

    摘要: The invention relates to 2,5-selenophene derivatives and 2,5-tellurophene derivatives, inter alia for use as components in liquid-crystal mixtures, and to liquid-crystal mixtures which comprise the compounds, and to liquid-crystal displays based on these mixtures. The invention furthermore relates to processes for the preparation of the compounds and to Se/Te-containing intermediates.

    摘要翻译: 本发明涉及2,5-硒吩衍生物和2,5-二氟苯丙衍生物,尤其用作液晶混合物中的组分,以及包含该化合物的液晶混合物,以及基于这些化合物的液晶显示器 混合物。 本发明还涉及制备化合物和含Se / Te的中间体的方法。