Producing liquid crystals with CF2O bond
    16.
    发明授权
    Producing liquid crystals with CF2O bond 有权
    用CF2O键生产液晶

    公开(公告)号:US06787062B2

    公开(公告)日:2004-09-07

    申请号:US10220428

    申请日:2002-09-03

    IPC分类号: C09K1930

    摘要: The invention relates to a process for the preparation of compounds having at least one —CF2O— bridge in the molecule, which comprises initially reacting a bis(alkylthio)carbenium salt with a compound containing at least one hydroxyl group in the presence of a base followed by oxidative fluorination, preferably in situ, with a fluorinating agent and an oxidizing agent to form the compound having at least one —CF2O— bridge in the molecule.

    摘要翻译: 本发明涉及制备在分子中具有至少一个-CF 2 O-桥的化合物的方法,该方法包括首先在碱的存在下使双(烷硫基)碳鎓盐与含有至少一个羟基的化合物反应, 通过氧化氟化,优选在原位与氟化剂和氧化剂形成在分子中具有至少一个-CF 2 O-桥的化合物。

    Chiral compounds II
    19.
    发明授权
    Chiral compounds II 有权
    手性化合物II

    公开(公告)号:US07318950B2

    公开(公告)日:2008-01-15

    申请号:US10332806

    申请日:2001-06-25

    摘要: The invention relates to chiral compounds of formula (I) R1—X1-(A1-Z1)m-G-(Z2-A2)n-X2—R2, wherein R1, R2, X1, X2, A1, A2, Z1, Z2, G, m and n have the meaning given in claim 1, to liquid crystalline mixtures comprising at least one chiral compound of formula (I), to chiral linear or crosslinked liquid crystalline polymers obtainable by polymerizing a polymerizable mixture comprising at least one chiral compound of formula (I), to the use of chiral compounds of formula (I) and mixtures and polymers obtained thereof in liquid crystal displays, active and passive optical elements, adhesives, synthetic resins with anisotropic mechanical properties, cosmetic and pharmaceutical compositions, diagnostics, liquid crystal pigments, for decorative and security applications, nonlinear optics, optical information storage or as chiral dopants, and to a liquid crystal display comprising a mixture comprising at least one chiral compound of formula (I).

    摘要翻译: 本发明涉及式(I)R 1至X 1的手性化合物 - (A 1 -S 1 -Z 1/2) >) -G-(Z 2)2 - &lt; 2&gt; 2&lt; 2&gt; 其中R 1,R 2,X 1,X 2, / SUP>,A <1>,2 ,Z 1,Z 2,G,m和n具有 权利要求1中给出的含义为包含至少一种式(I)的手性化合物的液晶混合物,可通过将包含至少一种式(I)的手性化合物的可聚合混合物聚合得到的手性线性或交联的液晶聚合物与 在液晶显示器,有源和无源光学元件,粘合剂,具有各向异性机械性能的合成树脂,化妆品和药物组合物,诊断学,液晶颜料,用于装饰和液晶显示器中使用式(I)的手性化合物及其获得的混合物和聚合物 安全应用,非线性光学,光学 形成储存物或手性掺杂剂,以及包含包含至少一种式(I)的手性化合物的混合物的液晶显示器。