Derivatives of 2,3-difluorobenzoic acid
    51.
    发明授权
    Derivatives of 2,3-difluorobenzoic acid 失效
    2,3-二氟硼酸的衍生物

    公开(公告)号:US5230827A

    公开(公告)日:1993-07-27

    申请号:US359673

    申请日:1989-05-12

    摘要: Derivatives of 2,3-Difluorobenzoic acid compounds of the formula I ##STR1## in which R.sup.1 and R.sup.2, independently of one another, are each an alkyl group having 1 to 15 C atoms, in which, in addition, one or two non-adjacent CH.sub.2 groups may be replaced by --O--, --CO--, --CH.dbd.CH-- and/or --C.tbd.C--, andA.sup.1 and A.sup.2, independently of one another, are each 1,4-phenylene which is unsubstituted or substituted by one or two fluorine atoms, and in which, in addition, one or two CH groups may be replaced by N, or are trans1,4-cyclohexylene, or one of the two A.sup.1 and A.sup.2 groups is alternatively a single bond,are suitable as components of liquid-crystalline phases.

    摘要翻译: PCT No.PCT / EP89 / 00183 Sec。 371日期1989年5月12日 102(e)日期1989年5月12日PCT提交1989年2月27日PCT公布。 WO89 / 08688 PCT公开 日期:1989年9月21日。式I的2,3-二氟苯甲酸衍生物,其中R 1和R 2彼此独立地为具有1至15个C原子的烷基, 此外,一个或两个不相邻的CH 2基团可以被-O - , - CO - , - CH = CH-和/或-C3B)C-代替,并且A 1和A 2彼此独立地为1 未被取代或被一个或两个氟原子取代的4-亚苯基,其中另外一个或两个CH基团可以被N取代,或者是反式1,4-亚环己基,或两个A1和A2之一 组可选地是单键,适合作为液晶相的组分。

    Heterocyclic 1,2-difluorobenzene derivatives
    54.
    发明授权
    Heterocyclic 1,2-difluorobenzene derivatives 失效
    杂环1,2-二氟苯甲醛衍生物

    公开(公告)号:US5209866A

    公开(公告)日:1993-05-11

    申请号:US363904

    申请日:1989-05-15

    摘要: Heterocyclic 1,2-difluorobenzene derivatives of the formula I ##STR1## in which R.sup.1 and R.sup.2, in each case independently of one another, are an alkyl groups (sic) having 1-15 C atoms in which, in addition, one or more CH.sub.2 groups may be replaced by a divalent radical selected from the group comprising --O--, --S--, --CO--, --O--CO--, --CO--O--, --CH.dbd.CH-- and --C.tbd.C--, where two heteroatoms are not linked directly to one another,A.sup.1 and A.sup.2, in each case independently of one another, are a 1,4-phenylene group which is unsubstituted or monosubstituted or polysubstituted by fluorine, and in which, in addition, one or two CH groups may be replaced by N, or are a 1,3,4-thiadiazole-2,5-diyl group or a trans-1,4-cyclohexylene group,m and n are each 0 or 2,o is 0 or 1, andp is 0, 1 or 2,where (o+p) is 1, 2 or 3 and, in the case where p=2, the A.sup.2 groups and n may be identical or different with the proviso that at least one of the groups A.sup.1 and A.sup.2 is a 1,3,4-thiadiazole-2,5-diyl group or an unsubstituted or substituted 1,4-phenylene group in which one or two CH groups have been replaced by N,are suitable as components of liquid-crystalline phases.

    摘要翻译: 其中R 1和R 2各自独立地为具有1-15个C原子的烷基(sic),其中另外还有一个或多个 CH2基团可以被选自-O - , - S - , - CO-,-O-CO-,-CO-O-,-CH = CH-和-CB 3 -C 其中两个杂原子彼此不直接连接,A1和A2在每种情况下彼此独立地是未被取代的或被氟单取代或多取代的1,4-亚苯基,并且其中,另外还有一个或 两个CH基团可以被N取代,或者是1,3,4-噻二唑-2,5-二基或反-1,4-亚环己基,m和n各自为0或2,o为0或 1,p为0,1或2,其中(o + p)为1,2或3,并且在p = 2的情况下,A2基团和n可以相同或不同,条件是至少一个 基团A1和A2是1,3,4-噻二唑-2,5-二基或未取代的或 其中一个或两个CH基团被N取代的取代的1,4-亚苯基适合作为液晶相的组分。

    2,3-difluorophenol derivatives
    55.
    发明授权
    2,3-difluorophenol derivatives 失效
    2,3-二氟苯酚衍生物

    公开(公告)号:US4897216A

    公开(公告)日:1990-01-30

    申请号:US321046

    申请日:1989-03-09

    CPC分类号: C09K19/2007 C09K19/3068

    摘要: 2,3-Difluorophenol derivatives of the formula ##STR1## wherein R.sup.1 and R.sup.2, in each case independently of one another, are an alkyl group having 1 to 15 C atoms in which, in addition, one or two nonadjacent CH.sub.2 groups may be replaced by --O--, --CO--, --CH.dbd.CH-- and/or --C.tbd.C--;A is 1,4-phenylene which is unsubstituted or substituted by one or two fluorines, or is trans-1,4-cyclohexylene or a single bond; andL.sup.1 and L.sup.2, in each case independently of one another, are H or F,are suitable as components of liquid-crystalline media.

    摘要翻译: 其中R 1和R 2在每种情况下彼此独立地是具有1至15个C原子的烷基,其中另外还可以被一个或两个不相邻的CH 2基团所取代的2,3-二氟苯酚衍生物 由-O - , - CO - , - CH = CH-和/或-C A是未取代的或被一个或两个氟取代的1,4-亚苯基,或是反式-1,4-亚环己基或单键; 并且L1和L2在每种情况下彼此独立地是H或F,适合作为液晶介质的组分。

    Fluorinated oligophenyls and their use in liquid crystal materials
    59.
    发明授权
    Fluorinated oligophenyls and their use in liquid crystal materials 失效
    氟化低聚物及其在液晶材料中的应用

    公开(公告)号:US5273680A

    公开(公告)日:1993-12-28

    申请号:US846750

    申请日:1992-03-09

    摘要: This invention relates to fluorinated oligophenyls of formula (I), in which a is 0 or 1 and in which the terminal substituents R.sup.1, R.sup.2 and R.sup.3 are each independently an alkyl or alkenyl residue each with up to 15 C atoms, optionally substituted by CN or by at least one halogen atom, and wherein one or more non adjacent CH.sub.2 groups of these residues may be replaced by --O--, --S--, --CO--, --O--CO--, --CO--O--, --O--CO--O-- or --C.tbd.C--, one of the residues R.sup.1 and R.sup.2 may also denote a group of formula (II), any one of the following pairs of lateral substituents are both fluorine: (A, B), (C, D), (D, E), (C, E), (B, C), (D, J), (D, K), (A, C), (C, J), (C', D'), (D', E), (D', A), (C', E), (C', A), (D', J'), (D', K'), (C', J'), (B, G), (A, G), all of the other lateral substituents being hydrogen or fluorine, and to their use as components of liquid crystalline compositions.

    摘要翻译: PCT No.PCT / EP88 / 00724 Sec。 371日期:1989年3月8日 102(e)日期1989年3月8日PCT提交1988年8月13日PCT公布。 出版物WO89 / 02425 本发明涉及式(I)的氟化低聚苯基,其中a是0或1,并且其中末端取代基R 1,R 2和R 3各自独立地为烷基或链烯基,每个具有至多15个 C原子,任选地被CN或至少一个卤素原子取代,并且其中这些残基的一个或多个非相邻的CH 2基团可以被-O - , - S - , - CO-,-O-CO-, - CO-O-,-O-CO-O-或-C 3BOND C-,残基R1和R2之一也可以表示式(II)的基团,以下对侧取代基中的任一个均为氟: (A,B),(C,D),(D,E),(C,E),(B,C),(D,J),(D,K),(A,C) ,(C',E),(C',A),(D',J'),(D',E) ',K'),(C',J'),(B,G),(A,G),所有其它横向取代基是氢或氟,并且作为液晶组合物的组分。

    2,3-difluorobiphenyls
    60.
    发明授权
    2,3-difluorobiphenyls 失效
    2,3-DIFLUOROBIPHENYLS

    公开(公告)号:US5204019A

    公开(公告)日:1993-04-20

    申请号:US362470

    申请日:1989-05-15

    摘要: 4-Q.sup.1 -4'-Q.sup.2 -2,3-Difluorobiphenyls whereinQ.sup.1 and Q.sup.2 independently of one another are each R or R-A.sup.1 -A.sup.2 -Z in whichR (sic) alkyl having 1-15 C atoms or alkenyl having 3-15 C atoms each of which is unsubstituted or monosubstituted by cyano or at least monosubstituted by fluorine or chlorine, and in which in each case one or two non-adjacent CH.sub.2 groups can also be replaced by --O--, --CO--, --O--CO, --CO--O-- or --O--COO--, (sic) --COO--, --O--CO--, --CH.sub.2 O, --O--CH.sub.2 --, --CH.sub.2 CH.sub.2 -- or a single bond, andA.sup.1 and A.sup.2 independently of one another . . (sic) each 1,4-phenylene which is unsubstituted or substituted by one or two fluorine atoms, and in which one or two CH groups can also be replaced by N, or trans-1,4-cyclohexylene wherein one or two non-adjacent CH.sub.2 groups can also be replaced by --O--, and one of the two groups A.sup.1 and A.sup.2 can also be a single bond,subject to the proviso that Z is --CO--O, --O--CO--, --CH.sub.2 O--, --OCH.sub.2 -- or --CH.sub.2 CH.sub.2 --, if one of the groups Q.sup.1 or Q.sup.2 is alkyl or alkoxy and the other group Q.sup.1 or Q.sup.2 is R-A.sup.1 -A.sup.2 -Z wherein one of the two groups A.sup.1 and A.sup.2 is a single bond, are suitable for use as components of liquid-crystal media.

    摘要翻译: PCT No.PCT / EP89 / 00180 Sec。 371日期:1989年5月15日 102(e)日期1989年5月15日PCT提交1989年2月27日PCT公布。 出版物WO89 / 08687 日本9月21日1989.4-Q1-4'-Q2-2,3-二氟联苯,其中Q1和Q2彼此独立地为R或R-A1-A2-Z,其中R(sic)烷基具有1-15个碳原子 具有3-15个碳原子的原子或烯基,其各自为未取代的或被氰基单取代或至少被氟或氯单取代,并且其中在每种情况下一个或两个不相邻的CH 2基团也可以被-O-, -CO - , - O-CO,-CO-O-或-O-COO-,(sic)-COO-,-O-CO-,-CH2O,-O-CH2-,-CH2CH2-或单键 ,A1和A2彼此独立。 。 (sic)未取代或被一个或两个氟原子取代的每个1,4-亚苯基,其中一个或两个CH基团也可以被N或反式-1,4-亚环己基代替,其中一个或两个非 - 相邻的CH2基团也可以被-O-取代,并且两个基团A1和A2之一也可以是单键,条件是Z是-CO-O,-O-CO-,-CH2O-, -OCH 2 - 或-CH 2 CH 2 - ,如果基团Q1或Q2中的一个为烷基或烷氧基,另一个基团Q1或Q2为两个基团A1和A2之一为单键的R-A1-A2-Z, 适合用作液晶介质的组分。