Chiral reaction products produced from mesogenic molecular structural
elements and bifunctionally reactive butanetetraol derivatives, and
their use as dopants in liquid crystal phases
    1.
    发明授权
    Chiral reaction products produced from mesogenic molecular structural elements and bifunctionally reactive butanetetraol derivatives, and their use as dopants in liquid crystal phases 失效
    由介晶分子结构元素和双官能反应性四氢醌衍生物产生的手性反应产物及其作为液晶相中的掺杂剂

    公开(公告)号:US4968820A

    公开(公告)日:1990-11-06

    申请号:US220377

    申请日:1988-07-11

    摘要: The new compounds produced from a molecular structural element with two chirality centers and at least one mesogenic structural element are defined by the general formula (I) ##STR1## in which the symbols have the following meaning: Y.sup.1, Y.sup.2, Y.sup.3, Y.sup.4 = in any two cases (a) hydroxy and MC--CO--O or, independently of each other, MC--CO--O and (b), independently of each other (C.sub.1 -C.sub.10)alkoxy, MC denoting the molecular radical of a mesogenic carboxylic acid after splitting off a COOH group, and it being possible for Y.sup.2 and Y.sup.3, in the case of (C.sub.1 -C.sub.10)alkoxy, also to be jointly part of a dioxolane ring, or Y.sup.1 and Y.sup.4 jointly = 0 as part of a tetrahydrofuran ring, and Y.sup.2 and Y.sup.3 = hydroxy and MC--CO--O or, independently of each other, MC--CO--O. Said esters preferably find application as dopants in twistable liquid crystal phases in which they produce temperature compensation and twisting.

    摘要翻译: 由具有两个手性中心和至少一个介晶结构元件的分子结构元件产生的新化合物由通式(I)(I)定义,其中符号具有以下含义:Y1,Y2,Y3, Y4 =在任何两种情况下(a)羟基和MC-CO-O或彼此独立地为MC-CO-O和(b),彼此独立地为(C1-C10)烷氧基,MC表示分子自由基 分解出COOH基后的介晶羧酸,在(C1-C10)烷氧基的情况下,Y2和Y3也可以作为二氧杂环戊烷环的一部分,或Y1和Y4联合= 0作为 四氢呋喃环,Y2和Y3 =羟基和MC-CO-O,或彼此独立地为MC-CO-O。 所述酯优选用作可扭曲液晶相中的掺杂剂,其中它们产生温度补偿和扭曲。