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21 条记录 (耗时 0.03 秒)

    Chiral aryl-2,3-epoxyalkyl-ethers and the corresponding thio compounds thereof, and the use thereof as dopes in liquid-crystal phases
    3.
    发明授权
    Chiral aryl-2,3-epoxyalkyl-ethers and the corresponding thio compounds thereof, and the use thereof as dopes in liquid-crystal phases 失效
    手性芳基-2,3-环氧烷基醚及其相应的硫代化合物及其作为液晶相中的掺杂物的用途

    公开(公告)号：US4876028A

    公开(公告)日：1989-10-24

    申请号：US104350

    申请日：1987-10-02

    申请人： Wolfgang Hemmerling ,  Hans-Rolf Dubal ,  Ingrid Muller ,  Dieter Ohlendorf ,  Rainer Wingen

    发明人： Wolfgang Hemmerling ,  Hans-Rolf Dubal ,  Ingrid Muller ,  Dieter Ohlendorf ,  Rainer Wingen

    IPC分类号： C07D405/12 ,  C07D409/12 ,  C09K19/34 ,  C09K19/58 ,  G02F1/13

    CPC分类号： C07D405/12 ,  C09K19/58 ,  C09K19/588

    摘要： The novel compounds are aryl-2,3-epoxyalkyl ethers or thioethers or the corresponding thiirane compounds having a mesogenic aromatic component and a chiral component having a three-membered heterocyclic ring, wherein, in the general formula (1), ##STR1## the symbols have the following meaning: R.sup.1 =straight-chain or branched (C.sub.1 -C.sub.12) alkyl, where one or two non-neighboring CH.sub.2 groups may be replaced by O or S atoms.A=diazine-2,5-diyl or diazine-3,6-diyl,X and Y=O and/or S, andR.sup.2, R.sup.3 and R.sup.4, independently of one another=H, straight-chain (C.sub.1 -C.sub.10) alkyl or branched (C.sub.3 -C.sub.10) alkyl, where R.sup.2, R.sup.3 and R.sup.4 are not simultaneously H.The compounds are preferably employed in tilted smectic liquid-crystal phases which they convert into ferroelectric liquid-crystal phases; they have high values for spontaneous polarization or they induce high values for spontaneous polarization.

    摘要翻译： 新化合物是芳基-2,3-环氧烷基醚或硫醚或具有介晶芳族组分的相应的硫杂环丁烷化合物和具有三元杂环的手性组分，其中在通式（1）中，（ I）符号具有以下含义：R1 =直链或支链（C1-C12）烷基，其中一个或两个不相邻的CH 2基团可以被O或S原子替代。 A =二嗪-2,5-二基或二嗪-3,6-二基，X和Y = O和/或S，R2，R3和R4彼此独立地为H，直链（C1-C10） 烷基或支链（C 3 -C 10）烷基，其中R 2，R 3和R 4不同时为H.这些化合物优选用于倾斜的近晶相液晶相，它们转变成铁电液晶相; 它们对于自发极化具有高的值，或者它们引起自发极化的高值。

    Chiral aryloxypropionates, and the use thereof as dopes in liquid-crystal phases
    5.
    发明授权
    Chiral aryloxypropionates, and the use thereof as dopes in liquid-crystal phases 失效
    手性芳氧基丙酸酯，以及其作为液晶相中的掺杂物的用途

    公开(公告)号：US4985172A

    公开(公告)日：1991-01-15

    申请号：US359747

    申请日：1989-05-05

    申请人： Rainer Wingen ,  Hans-Rolf Dubal ,  Wolfgang Hemmerling ,  Ingrid Muller ,  Dieter Ohlendorf

    发明人： Rainer Wingen ,  Hans-Rolf Dubal ,  Wolfgang Hemmerling ,  Ingrid Muller ,  Dieter Ohlendorf

    IPC分类号： G02F1/13 ,  C07C20060101 ,  C07C69/712 ,  C07C69/773 ,  C07C69/92 ,  C07D239/26 ,  C07D239/34 ,  C07D405/12 ,  C09K19/20 ,  C09K19/54 ,  C09K19/58

    CPC分类号： C07D239/26 ,  C07D239/34 ,  C09K19/586 ,  C09K19/588

    摘要： Arylcarboxylates of 2-hydroxypropionates are known, amongst other compounds, as dopes for converting tilted smectic liquid-crystal phases into ferroelectric liquid-crystal phases.The novel chiral aryloxypropionates of the general formula ##STR1## are two-fold chiral and in which the symbols have the following meaning: R.sup.1 denotes a straight-chain alkyl or alkoxy radical having 1 to 16 carbon atoms or a branched alkyl or alkoxy radical having 4 to 16 carbon atoms, it being possible for one or two non-adjacent CH.sub.2 groups to be replaced by a sulfur and/or oxygen atom;A denotes one, two or three aromatic or heteroaromatic rings which are linked to one another directly or via one or two COO groups;B denotes a chemical bond or one or two aromatic or heteroaromatic rings which are linked directly to one another;R.sup.2(a) if B is a chemical bond, denotes an alkyl radical having 2 to 10 carbon atoms which contains an asymmetrical carbon atom which is substituted by CH.sub.3, halogen or a COOC.sub.2 H.sub.5 group, or an alkyl radical having 3 to 10 carbon atoms which contains two adjacent, asymmetrical carbon atoms of which one is substituted by halogen and the other by a CH.sub.3 group, or which, together with an O, form an oxirane ring, or(b) if B denotes one or two aromatic or heteroaromatic rings which are bonded directly to one another, denotes alkoxy radicals having the same number of carbon atoms and the same structure of the alkyl group as under (a).

    摘要翻译： PCT No.PCT / EP87 / 00653 Sec。 371日期1989年5月5日 102（e）日期1989年5月5日PCT提交1987年11月2日PCT公布。 第WO88 / 03525号公报 日期：1988年5月19日。2-羟基丙酸的芳基羧酸盐等已知的化合物作为将倾斜的近晶液晶相转化为铁电液晶相的掺杂物。 通式的新型手性芳氧基丙酸酯是双重手性的，其中符号具有以下含义：R 1表示具有1至16个碳原子的直链烷基或烷氧基或具有支链烷基或烷氧基的基团，其具有 4至16个碳原子，一个或两个不相邻的CH2基团可能被硫和/或氧原子代替; A表示直接或通过一个或两个COO基彼此连接的一个，两个或三个芳族或杂芳族环; B表示化学键或一个或两个彼此直接连接的芳族或杂芳族环; R2（a）如果B是化学键，则表示碳原子数为2〜10的烷基，其含有被CH 3，卤素或COOC 2 H 5基团取代的不对称碳原子或碳原子数3〜10的烷基， 含有两个相邻的不对称碳原子，其中一个被卤素取代，另一个由CH3基团取代，或与O一起形成环氧乙烷环，或（b）如果B表示一个或两个芳族或杂芳族环， 表示与（a）同样的具有相同碳原子数和烷基相同结构的烷氧基。