Liquid crystal compounds having a terminal 1-alkynyl residue
    22.
    发明授权
    Liquid crystal compounds having a terminal 1-alkynyl residue 失效
    具有末端1-炔基残基的液晶化合物

    公开(公告)号:US5264149A

    公开(公告)日:1993-11-23

    申请号:US879629

    申请日:1992-05-07

    摘要: Compounds of the formula ##STR1## wherein n stands for the number 0 or 1; rings A, B and C each independently represent trans-1,4-cyclohexylene, trans-1,3-dioxane-2,5-diyl or unsubstituted or fluoro-substituted 1,4-phenylene; R.sup.1 denotes 3E-alkenyl with 4 to 12 carbon atoms, 4-alkenyl with 5 to 12 carbon atoms or, when ring A represents trans-1,4-cyclohexylene or trans-1,3-dioxane-2,5-diyl, also 1E-alkenyl with 2 to 12 carbon atoms; and R.sup.2 is hydrogen or C.sub.1 -C.sub.10 -alkyl, their manufacture as well as liquid crystalline mixtures which contain such compounds and their use for electro-optical purposes.

    摘要翻译: 式(Ⅰ)的化合物,其中n代表数字0或1; 环A,B和C各自独立地表示反式-1,4-亚环己基,反式-1,3-二恶烷-2,5-二基或未取代或氟取代的1,4-亚苯基; R1表示具有4至12个碳原子的3E-烯基,具有5至12个碳原子的4-链烯基,或者当环A表示反式-1,4-亚环己基或反式-1,3-二恶烷-2,5-二基时,也表示 具有2至12个碳原子的1E-烯基; 并且R 2是氢或C 1 -C 10 - 烷基,它们的制备以及含有这些化合物的液晶混合物及其用于电光目的。

    Liquid crystal compounds having a terminal 1-alkynyl residue
    24.
    发明授权
    Liquid crystal compounds having a terminal 1-alkynyl residue 失效
    具有终端1-烷基残基的液晶体化合物

    公开(公告)号:US5171473A

    公开(公告)日:1992-12-15

    申请号:US579905

    申请日:1990-09-10

    摘要: Compounds of the formula ##STR1## wherein n stands for the number 0 or 1; rings A, B and C each independently represent trans-1,4-cyclohexylene, trans-1,3-dioxane-2,5-diyl or unsubstituted or fluoro-substituted 1,4-phenylene; R.sup.1 denotes 3E-alkenyl with 4 to 12 carbon atoms, 4-alkenyl with 5 to 12 carbon atoms or, when ring A represents trans-1,4-cyclohexylene or trans-1,3-dioxane-2,5-diyl, also 1E-alkenyl with 2 to 12 carbon atoms; and R.sup.2 is hydrogen or C.sub.1 -C.sub.10 -alkyl,their manufacture as well as liquid crystalline mixtures which contain such compounds and their use for electro-optical purposes.

    摘要翻译: 式(Ⅰ)的化合物,其中n代表数字0或1; 环A,B和C各自独立地表示反式-1,4-亚环己基,反式-1,3-二恶烷-2,5-二基或未取代或氟取代的1,4-亚苯基; R1表示具有4至12个碳原子的3E-烯基,具有5至12个碳原子的4-链烯基,或者当环A表示反式-1,4-亚环己基或反式-1,3-二恶烷-2,5-二基时,也表示 具有2至12个碳原子的1E-烯基; 并且R 2是氢或C 1 -C 10 - 烷基,它们的制备以及含有这些化合物的液晶混合物及其用于电光目的。

    Alkenylbicyclohexane liquid crystals
    25.
    发明授权
    Alkenylbicyclohexane liquid crystals 失效
    烯基双环己烷液晶

    公开(公告)号:US5013477A

    公开(公告)日:1991-05-07

    申请号:US262653

    申请日:1988-10-26

    摘要: Compounds of the formula ##STR1## wherein Z represents a single covalent bond or --CH.sub.2 CH.sub.2 --, R.sup.1 denotes 1E-alkenyl with 2-10 carbon atoms or 3E-alkenyl with 4-10 carbon atoms and R.sup.2 is alkyl with 1-10 carbon atoms, 2E-alkenyl with 3-10 carbon atoms or 3-alkenyl with 4-10 carbon atoms,as well as their use in liquid crystalline mixtures and for electro-optical purposes.

    摘要翻译: 其中Z表示单个共价键或-CH 2 CH 2 - ,R 1表示具有2-10个碳原子的1E-烯基或具有4-10个碳原子的3E-链烯基,R2是具有1-10个碳原子的烷基, 原子,具有3-10个碳原子的2E-烯基或具有4-10个碳原子的3-烯基,以及它们在液晶混合物中的用途和用于电光学目的。

    Pyridine liquid crystalline compounds
    26.
    发明授权
    Pyridine liquid crystalline compounds 失效
    吡啶液晶化合物

    公开(公告)号:US4898455A

    公开(公告)日:1990-02-06

    申请号:US39143

    申请日:1987-04-16

    摘要: There is described compounds of the formula ##STR1## wherein X stands for CH and Y stands for N or X stands for N and Y stands for CH; A.sup.1 and A.sup.2 signify single covalent bonds or one of the groups A.sup.1 and A.sub.2 also signifies trans-1,4-cyclohexylene, cis-4-cyano-trans-1,4-cyclohexylene or 1,4-phenylene optionally substituted with halogen or methyl; ring B represents trans-1,4-cyclohexylene, 1,4-phenylene optionally substituted with halogen or methyl or, when A.sup.2 signifies a single covalent bond, also cis-4-cyano-trans-1,4-cyclohexylene; R.sup.1 denotes an optionally halogen-substituted alkyl or alkenyl group in which optionally one CH.sub.2 group or two non-adjacent CH.sub.2 groups is/are replaced by --O--, --COO-- and/or --OOC--; R.sup.2 signifies an optionally halogen-substituted alkyl or alkenyl group in which optionally one CH.sub.2 group or two non-adjacent CH.sub.2 groups is/are replaced by --O--, --COO-- and/or --OOC-- or R.sup.2 on a benzene ring also signifies --NCS, cyano or halogen; with the proviso that R.sup.1 denotes an optionally halogen-substituted alkenyl group in which optionally one CH.sub.2 group or two non-adjacent CH.sub.2 groups is/are replaced by --O--, --COO-- and/or --OOC-- when R.sup.2 signifies cyano or halogen; and with the proviso that R.sup.1 and/or R.sup.2 has a chiral carbon atom when R.sup.1 and R.sup.2 stand for optionally halogen-substituted alkyl groups in which optionally one CH.sub.2 group or two non-adjacent CH.sub.2 groups is/are replaced by --O--, --COO-- and/or --OOC--,as well as liquid crystalline mixtures and their use for electro-optical purposes.

    摘要翻译: 描述了式(Ⅰ)的化合物,其中X代表CH,Y代表N或X代表N,Y代表CH; A1和A2表示单个共价键,或者A1和A2之一也表示反式-1,4-亚环己基,顺式-4-氰基 - 反-1,4-亚环己基或任选被卤素或甲基取代的1,4-亚苯基 ; 环B表示反式-1,4-亚环己基,任选被卤素或甲基取代的1,4-亚苯基,或当A2表示单个共价键时,也表示顺式-4-氰基 - 反式-1,4-亚环己基; R1表示任选的卤素取代的烷基或烯基,其中任选一个CH 2基团或两个不相邻的CH 2基团被-O-,-COO-和/或-OOC-取代; R2表示任选的卤素取代的烷基或烯基,其中任选一个CH 2基团或两个不相邻的CH 2基团被-O-,-COO-和/或-OOC-或R2取代在苯环上也表示 -NCS,氰基或卤素; 条件是R 1表示任选的卤素取代的烯基,其中当R 2表示氰基或卤素时,任选地一个CH 2基团或两个不相邻的CH 2基团被-O-,-COO-和/或-OOC-取代 ; 并且条件是当R 1和R 2表示任选卤素取代的烷基时,R 1和/或R 2具有手性碳原子,其中任选地一个CH 2基团或两个不相邻的CH 2基团被-O-, - COO-和/或-OOC-,以及液晶混合物及其用于电光目的。

    Liquid crystalline compounds
    27.
    发明授权
    Liquid crystalline compounds 失效
    液晶化合物

    公开(公告)号:US4770503A

    公开(公告)日:1988-09-13

    申请号:US58663

    申请日:1987-05-27

    摘要: Compounds of the formula ##STR1## wherein m stands for a whole number of 4-7 and n stands for 0 or a positive whole number; ring A represents trans-1,4-cyclohexylene or a 2,5-disubstituted pyrimidine ring; Z signifies a single covalent bond or, insofar as ring A represents trans-1,4-cyclohexylene, also the ethylene group --CH.sub.2 CH.sub.2 --; X denotes hydrogen or fluorine; and R represents the group --NCS or --CN,their manufacture, liquid crystalline mixtures which contain these compounds and the use of these compounds and mixtures for electro-optical purposes are described.

    摘要翻译: 式IA的化合物,其中m代表整数4-7,n代表0或正整数; 环A表示反式-1,4-亚环己基或2,5-二取代的嘧啶环; Z表示单个共价键,或者环A表示反式-1,4-亚环己基,也可以是亚乙基-CH 2 CH 2 - ; X表示氢或氟; 并且R表示基团-NCS或-CN,其制备,含有这些化合物的液晶混合物以及这些化合物和混合物用于电光目的的用途被描述。