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    2.
    发明专利
    未知

    公开(公告)号：DE3887048D1

    公开(公告)日：1994-02-24

    申请号：DE3887048

    申请日：1988-09-14

    Applicant: HOECHST AG

    Inventor： DUEBAL HANS-ROLF DR ,  ESCHER CLAUS DR ,  HEMMERLING WOLFGANG DR ,  MUELLER INGRID DR ,  OHLENDORF DIETER DR ,  WINGEN RAINER DR

    IPC: C09K19/42 ,  C09K19/34 ,  C09K19/46 ,  C09K19/58 ,  G02F1/137 ,  G02F1/141

    Abstract: The novel liquid-crystalline mixtures (in the case of ferroelectric behavior they additionally contain an optically active compound as dope) are constructed from at least 2 mixture components of the general formula (I): (I) wherein n=6 to 14 and x=2 to 14. In addition, the mixtures may also contain cyclohexanecarboxylates of the general formula (II) (II) where R1=(C10-C16) or (C8-C14)alkoxy and R2=(C2-C9)alkyl, alkenyloxyphenylpyrimidine derivatives of the general formula (III) (III) where R3=(C7-C16)alkyl or (C6-C14)alkoxy and y=4-14, and/or alkoxyphenyl derivatives of alkylpyrimidine, of the general formula (IV) (IV) where m and p=6 to 14.

    5.
    发明专利
    未知

    公开(公告)号：DE3883090D1

    公开(公告)日：1993-09-16

    申请号：DE3883090

    申请日：1988-03-22

    Applicant: HOECHST AG

    Inventor： MUELLER INGRID DR ,  DUEBAL HANS-ROLF DR ,  ESCHER CLAUS DR ,  HEMMERLING WOLFGANG DR ,  OHLENDORF DIETER DR ,  WINGEN RAINER DR

    IPC: G02F1/137 ,  C07D239/26 ,  C07D239/34 ,  C07D239/38 ,  C09K19/34 ,  G02F1/141

    Abstract: New 3-phenylpyrimidines are of formula (I). In (I), R1 and R2 independently = linear or branched alk(en)yl with k to 16 C atoms, with or without asymmetrical C atoms, in which one or more nonadjacent CH2 gps. can be replaced by -O- or -S-; A and B independently = gps. of formula (a) or (b); R1, 2 = R1 or R2; m and n = 0 or 1 but m and n not both = 1; provided that: a) if m = 0, k = 8 and the CH2 gp. in R2 next to the phenyl ring is replaced by -O-; b) if m = 1 and n = 0, k = 2; and c) is m = 0 and n = 1, k = 2 and the CH2 gp. in R2 next to the phenyl ring is replaced by -O-. The prepn. of (I) is also claimed. 29 cpds. are claimed, including (S)-2-heptylthio-5- (4-(6-methyloctyloxy) phenol-pyrimidine (IA).

    New 2-fluoro-pyridine cpds. used in ferroelectric liquid crystal mixt.
    7.
    发明专利
    New 2-fluoro-pyridine cpds. used in ferroelectric liquid crystal mixt. 未知

    公开(公告)号：DE4111461A1

    公开(公告)日：1992-10-15

    申请号：DE4111461

    申请日：1991-04-09

    Applicant: HOECHST AG

    Inventor： SCHLOSSER HUBERT DR ,  WINGEN RAINER DR ,  ILLIAN GERD DR ,  ESCHER CLAUS DR

    IPC: C07D213/61 ,  C07D213/64 ,  C07D213/65 ,  C07D401/14 ,  C07D405/04 ,  C07D405/12 ,  C07F5/02 ,  C07F7/08 ,  C09K19/34 ,  C09K19/40

    Abstract: New 2-fluoropyridine derivs. (I) are of formula (I), where R1-2 independently = H, F, Cl, CN, NCS, -CF3, -OCF3, -OCHF2 or linear or branched 1-16C alkyl (with or without asymmetrical C atom), in which one or two non-adjacent -CH2- gps. may be replaced by -O-, -S-, -CO-, -CO-O-, -O-CO-, -CO-S-, -S-CO-, -O-CO-O-, -CH=CH-, -C=C- or -Si(CH3)2- and also one or more H atoms of the alkyl gp. may be replaced by F, Cl, Br or CN; or a chiral gp. of the formulae (C1 to (C14) (where X = F or Cl; Y = -CO- or -CH2-; A1-4 independently = 1,4-phenylene, pyrazin-2,5-diyl, pyridazin-3,6-diyl, pyridin-2,5-diyl, pyrimidin-2,5-diyl (in which one or two H atoms may be replaced by F), trans-1,4-cyclohexylene (in which one or two H atoms may be replaced by CN), 1,3,4-thiadiazol-2,5-diyl, 1,3-dioxan-2,5-diyl, naphthalene-2,6-diyl, bicyclo(2.2.2)-octan-1,4-diyl or 1,3-dioxaborinan-2,5-diyl; M1-4 independently = -O-, -S-, -CO-, -CO-O-, -O-CO-, -CO-S-, -S-CO-, -O-CO-O-, -CH2-O-, -O-CH2-, -CH2-CH2-, -CH=CH- or -C=C-; R3-4 and R6-7 independently = H or linear or branched 1-16C alkl; or R3+R4 may also = -(CH2)4- or -CH2)5- if attached to a dioxolane system; M5 = -CH2-O-, -CO-O-, -O-CH2-, -O-CO- or a single bond; k, l, m, n, o, p, q and r = 0 or 1, such that (k+m+p+r) = less than 4 and more than 0.

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