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.
公式(I)所表示的是一个环烃衍生物,其中Y1和Y2中的每一个都是独立的F、Cl、CN、OCN、SCN、OCF3、OCF2H、OCF2CF3、CF3、R、-OR、-COOR或-OCOR,其中R是烷基、烯基或烷氧基,前提是Y1和Y2中的至少一个是R、-OR、-COOR或-OCOR;Z、Z1、Z2、Z3和Z4中的每一个都是单键、-CH2CH2-、-CH=CH-、-C≡C-、-COO-、-OCO-、-CH2O-、OCH2-、-(CH2)4-、-(CH2)3-O-或-O-(CH2)3-;环A是公式(II)所表示的基团:其中X1、X2、X3、X4、X5、X6、X7、X8、X9和X10中的每一个都是独立的H或D,前提是其中至少一个是D;环K、L、J、M和N中的每一个都是独立的反式1,4-环己基、1,4-环己烯基、取代的反式1,4-环己基、1,4-苯基、取代的1,4-苯基、1,3-二噁烷-2,6-二基、嘧啶-2,5-二基、吡啶-2,5-二基、吡咯烷-2,5-二基或公式(III)所表示的基团:其中X11、X12、X13、X14、X15、X16、X17、X18、X19和X20中的每一个都是独立的H或D,前提是其中至少一个是D;公式(III)所表示的环可以与环A相同或不同;k、l、m和n各自独立地为0或1,前提是k、l、m和n的总和为0、1或2。此化合物可用作电光液晶显示材料。