Liquid crystal dielectric
    1.
    发明授权
    Liquid crystal dielectric 失效
    液晶电介质

    公开(公告)号:US4818431A

    公开(公告)日:1989-04-04

    申请号:US933953

    申请日:1986-11-24

    摘要: New tetrahydropyran derivatives of the formula I ##STR1## in which G is H.sub.2 or .dbd.O, R.sup.1 and R.sup.2 are each an alkyl group having 1-10 C atoms, it also being possible for one or two CH.sub.2 groups to be replaced by O atoms, or are F, Cl, Br or CN, R.sup.2 is also H, A.sup.1 and A.sup.2 are each 1,4-phenylene, 1,4-cyclohexylene, 1,3-dioxane-2,5-diyl, piperidine-1,4-diyl, 1,4-bicyclo[2.2.2]octylene or pyrimidine-2,5-diyl groups which are unsubstituted or substituted by 1-4 F atoms, Z.sup.1 and Z.sup.2 are each --CO--O--, --O--CO--, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 --, --CH.sub.2 O--, or a single bond, m and n are each 0, 1, 2 or 3, but (m+n) is at least 1 and at most 3, it being possible, when m is 2 or 3, for the group A.sup.1 and, when n is 2 or 3, for the groups A.sup.2 each to be identical or different from one another, and the acid addition salts of those among these compounds which are basic, are suitable for use as components in liquid-crystal dielectrics.

    摘要翻译: 其中G为H 2或= O,R 1和R 2的式I的新的四氢吡喃衍生物各自为具有1-10个C原子的烷基,也可以将一个或两个CH 2基团替换为O 或者是F,Cl,Br或CN,R2也是H,A1和A2分别是1,4-亚苯基,1,4-亚环己基,1,3-二恶烷-2,5-二基,哌啶-1, 未被取代或被1-4个F原子取代的4-二基,1,4-二环[2.2.2]辛烯或嘧啶-2,5-二基,Z 1和Z 2各自为-CO-O-,-O- CO-,-CH 2 CH 2 - , - OCH 2 - , - CH 2 O-或单键,m和n各自为0,1,2或3,但(m + n)为至少1且最多为3, 当m为2或3时,对于基团A1,当n为2或3时,对于各自彼此相同或不同的基团A2,并且这些化合物中的碱加成盐, 适用于液晶电介质中的组分。

    Heterocyclic compounds
    2.
    发明授权
    Heterocyclic compounds 失效
    杂环化合物

    公开(公告)号:US4726911A

    公开(公告)日:1988-02-23

    申请号:US788377

    申请日:1985-10-17

    摘要: Compounds of the formula IR.sup.1 --A.sup.1 --Z.sup.1 --A.sup.2 --R.sup.2 IwhereinR.sup.1 and R.sup.2 are each an alkyl group having 1-10 C atoms, in which one or two non-adjacent CH.sub.2 groups can also be replaced by O atoms and/or CO groups and/or --OCO-- groups and/or --COO-- groups and/or --CH.dbd.CH-- groups, or are F, Cl, Br, CN or R.sup.3 --A.sup.3 --Z.sup.2 --,A.sup.1 is --A--, --A.sup.4 --A-- or --A--A.sup.4 --,A is a 1,3-dioxane-2,5-diyl or 1,3-dithiane-2,5-diyl group which is monosubstituted or polysubstituted in the 2-position and/or 4-position by alkyl each having 1-10 C atoms and/or in the 5-position by alkyl, alkoxy, fluorinated alkyl or fluorinated alkoxy each having 1-5 C atoms, or by F, Cl, Br or CN,A.sup.2, A.sup.3 and A.sup.4 each are 1,3-dithiane-2,5-diyl, piperidine-1,4-diyl, 1,4-bicyclo[2,2,2]octylene, decahydronaphthalene-2,6-diyl, 1,2,3,4-tetrahydronaphthalene-2,6-diyl, 1,4-phenylene, 1,4-phenylene which is substituted by one or two F and/or Cl atoms and/or CH.sub.3 groups and/or CN groups and in which one or two CH groups can also be replaced by N atoms, or 1,4-cyclohexylene in which one or two non-adjacent CH.sub.2 groups can also be replaced by O atoms,Z.sup.1 and Z.sup.2 each are --CO--O--, --O--CO--, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 --, --CH.sub.2 O-- or a single bond, andR.sup.3 is H, an alkyl group having 1-10 C atoms, in which one or two non-adjacent CH.sub.2 groups can also be replaced by O atoms and/or --CH.dbd.CH-- groups, or is F, Cl, Br or CN,can be used as components of liquid-crystalline phases.

    摘要翻译: 其中R1和R2各自为具有1-10个C原子的烷基,其中一个或两个不相邻的CH 2基团也可被O原子和/ 或CO基团和/或-OCO-基团和/或-COO-基团和/或-CH = CH-基团,或者是F,Cl,Br,CN或R3-A3-Z2-,A1是-A-, -A4-A-或-A-A4-,A是在2-位上被单取代或多取代的1,3-二恶烷-2,5-二基或1,3-二噻烷-2,5-二基, /或4-位,各自具有1-10个C原子的烷基和/或在5-位的烷基,烷氧基,氟化烷基或氟代烷氧基,各自具有1-5个C原子,或被F,Cl,Br或CN, A2,A3和A4分别为1,3-二噻烷-2,5-二基,哌啶-1,4-二基,1,4-双环[2,2,2]亚辛基,十氢萘-2,6-二基,1 2,3,4-四氢化萘-2,6-二基,1,4-亚苯基,被一个或两个F和/或Cl原子和/或CH 3基团和/或CN基团取代的1,4-亚苯基,以及 其中一个或两个CH基团也可以被N原子或1,4-环己烯取代 其中一个或两个不相邻的CH 2基团也可以被O原子替代,Z 1和Z 2各自是-CO-O-,-O-CO - , - CH 2 CH 2 - , - OCH 2 - , - CH 2 O-或单 并且R 3是H,具有1-10个C原子的烷基,其中一个或两个不相邻的CH 2基团也可以被O原子和/或-CH = CH-基团取代,或者是F,Cl, Br或CN可用作液晶相的组分。

    Bicyclooctane derivatives
    3.
    发明授权
    Bicyclooctane derivatives 失效
    双环辛烷衍生物

    公开(公告)号:US4707295A

    公开(公告)日:1987-11-17

    申请号:US843407

    申请日:1986-03-24

    摘要: Bicyclooctane derivatives of the formula IR.sup.1 --A.sup.1 --A.sup.2 --R.sup.2 IwhereinR.sup.1 and R.sup.2 independently of one another are each an alkyl group which has 1-12 C atoms and in which it is also possible for one or two non-adjacent CH.sub.2 groups to be replaced by O atoms and/or CO groups and/or --O13 CO groups and/or --CO--O groups and/or --CH.dbd.CH-- groups, one of the radicals R.sup.1 and R.sup.2 being also --A.sup.3 --R.sup.3,A.sup.1 is a 1,4-cyclohexylene group which is unsubstituted or substituted in the 1-position and/or 2-position and/or 3-position and/or 4-position by alkyl which has in each case 1-5 C atoms and is unsubstituted or substituted or fluorinated, and in which it is also possible for one or two non-adjacent CH.sub.2 groups to be replaced by one or two different groupings from the group --O--, --CO--, --CH.dbd.CH--, --S--, --SO-- or --SO.sub.2 --, or is substituted by F, Cl, Br, CN and/or CHO,A.sup.2 is a 1,4-bicyclo[2.2.2] octylene group,--A.sup.3 --R.sup.3 is --Cy--R.sup.3, --Ph--R.sup.3, --Cy--Ph--R.sup.3 or --Ph--Cy--R.sup.3,Cy is 1,4-cyclohexylene or one of the other groups recited for A.sup.1,Ph is 1,4-phenylene which is unsubstituted or substituted by or one two F atoms and/or CH.sub.3 groups andR.sup.3 is an alkyl group which has 1-12 C atoms and in which it is also possible for one or two non-adjacent CH.sub.2 groups to be replaced by O atoms and/or CO groups and/or O--CO groups and/or --CO--O groups and/or --CH.dbd.CH-- groupsare suitable for use as components of liquid-crystal phases for field effect and/or bistability effect displys.

    摘要翻译: 式I R1-A1-A2-R2 I的双环辛烷衍生物,其中R 1和R 2彼此独立地是具有1-12个C原子的烷基,并且其中一个或两个不相邻的CH 2基团也是可能的 被O原子和/或CO基团和/或-O13CO基团和/或-CO-O基团和/或-CH = CH-基团取代,基团R1和R2之一也是-A3-R3, A1是未取代的或在1位和/或2位和/或3位和/或4位上被烷基取代的1,4-亚环己基,其各自为1-5个C原子和 是未取代或取代或氟化的,并且其中一个或两个不相邻的CH 2基团也可以被-O - , - CO - , - CH = CH - , - S,-SO-或-SO 2 - ,或被F,Cl,Br,CN和/或CHO取代,A2是1,4-双环[2.2.2]亚辛基,-A3-R3是-Cy -R3,-Ph-R3,-Cy-Ph-R3或-Ph-Cy-R3,Cy为1,4-亚环己基或为A1所列举的其它基团之一, Ph是未被取代或被两个F原子和/或CH 3基团取代的1,4-亚苯基,R 3是具有1-12个C原子的烷基,并且其中也可以有一个或两个不相邻的 被O原子和/或CO基团和/或O-CO基团和/或-CO-O基团和/或-CH = CH-基团取代的CH 2基团适用于现场的液晶相的组分 效果和/或双稳性效应不好。