申请人:Dainippon Ink and Chemicals, Inc.
公开号:US05474707A1
公开(公告)日:1995-12-12
A cyclic hydrocarbon derivative represented by formula (I): ##STR1## wherein each of Y.sup.1 and Y.sup.2 is independently F, Cl, CN, OCN, SCN, OCF.sub.3, OCF.sub.2 H, OCF.sub.2 CF.sub.3, CF.sub.3, R, --OR, --COOR or --OCOR, wherein R is alkyl, alkenyl or alkoxyalkyl, provided that at least one of Y.sup.1 and Y.sup.2 is R, --OR, --COOR or --OCOR; each of Z, Z.sup.1, Z.sup.2, Z.sup.3 and Z.sup.4 is independently a single bond, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --C.tbd.C--, --COO--, --OCO--, --CH.sub.2 O--, OCH.sub.2 --, --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.3 --O-- or --O--(CH.sub.2).sub.3 --; ring A is group of formula (II): ##STR2## wherein each of X.sup.1, X.sup.2, X.sup.3, X.sup.4, X.sup.5, X.sup.6, X.sup.7, X.sup.8, X.sup.9, and X.sup.10 is independently H or D, provided that at least one of them is D; each of rings K, L, J, M and N is independently trans-1,4-cyclohexylene, 1,4-cyclohexenylene, substituted trans-1,4-cyclohexylene, 1,4-phenylene, substituted 1,4-phenylene, 1,3-dioxane-2,6-diyl, pyrimidine-2,5-diyl, pyridine-2,5-diyl, pyarazine-2,5-diyl or a group of formula (III): ##STR3## wherein each of X.sup.11, X.sup.12, X.sup.13, X.sup.14, X.sup.15, X.sup.16, X.sup.17, X.sup.18, X.sup.19, and X.sup.20 is independently H or D, provided that at least one of them is D; in which the ring of formula (III) may be the same as or different from ring A; and k, l, m, and n each independently is 0 or 1, provided that the sum of k, l, m, and n is 0, 1 or 2. The compound is useful as an electro-optic liquid crystal display material.
由以下公式(I)表示的环烃衍生物:其中Y.sup.1和Y.sup.2中的每一个独立地是F、Cl、CN、OCN、SCN、OCF.sub.3、OCF.sub.2 H、OCF.sub.2 CF.sub.3、CF.sub.3、R、--OR、--COOR或--OCOR,其中R是烷基、烯基或烷氧基烷基,前提是Y.sup.1和Y.sup.2中至少有一个是R、--OR、--COOR或--OCOR;Z、Z.sup.1、Z.sup.2、Z.sup.3和Z.sup.4中的每一个独立地是单键、--CH.sub.2 CH.sub.2 --、--CH.dbd.CH--、--C.tbd.C--、--COO--、--OCO--、--CH.sub.2 O--、OCH.sub.2 --、--(CH.sub.2).sub.4 --、--(CH.sub.2).sub.3 --O--或--O--(CH.sub.2).sub.3 --;环A是以下公式(II)的组:其中X.sup.1、X.sup.2、X.sup.3、X.sup.4、X.sup.5、X.sup.6、X.sup.7、X.sup.8、X.sup.9和X.sup.10中的每一个独立地是H或D,前提是其中至少有一个是D;环K、L、J、M和N中的每一个独立地是反-1,4-环己烯基、1,4-环己烯基、取代的反-1,4-环己烯基、1,4-苯基、取代的1,4-苯基、1,3-二氧杂环己烷-2,6-二基、嘧啶-2,5-二基、吡啶-2,5-二基、吡嗪-2,5-二基或以下公式(III)的组:其中X.sup.11、X.sup.12、X.sup.13、X.sup.14、X.sup.15、X.sup.16、X.sup.17、X.sup.18、X.sup.19和X.sup.20中的每一个独立地是H或D,前提是其中至少有一个是D;在该公式(III)的环可能与环A相同或不同;以及k、l、m和n每个独立地是0或1,前提是k、l、m和n的总和为0、1或2。该化合物可用作电光液晶显示材料。