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    Cpds. for improving properties of pref. ferroelectric LC mixts.
    3.
    发明专利
    Cpds. for improving properties of pref. ferroelectric LC mixts. 未知

    公开(公告)号：DE19627899A1

    公开(公告)日：1997-01-23

    申请号：DE19627899

    申请日：1996-07-11

    Applicant: HOECHST AG

    Inventor： HORNUNG BARBARA DIPL ING ,  WINGEN RAINER DR ,  MORR MICHAEL DR ,  LOETZSCH DETLEF DR ,  HEPPKE GERD PROF DR

    IPC: G02F1/13 ,  C07C69/773 ,  C07C69/92 ,  C07C69/94 ,  C07D239/26 ,  C07D239/34 ,  C07D285/12 ,  C07D303/02 ,  C07D307/10 ,  C09K19/20 ,  C09K19/34 ,  C09K19/58 ,  C07C69/90 ,  C07D405/12 ,  C07D417/12 ,  C09K19/08 ,  G09F9/35

    Abstract: Cpds. of formula (I) with multiple methyl branching are new: R (-A -M )a(-A -M )b(-A -M )c(-A )-G(C H(CH3)-CH2) n-R2 (I); A -A = 1,4-phenylene (opt. contg. one or more H atoms replaced by F, Cl and/or CN), pyrazine-2,5-diyl (opt. contg. 1-2H atoms replaced by Fl, Cl, and/or CN), pyridazine-3,6-diyl (opt. contg. 1-2H atoms replaced by Fl, Cl and/or CN), pyridine-2,5-diyl (opt. contg. one or more H atoms replaced by F, Cl and/or CN), pyrimidine-2,5-diyl (opt. contg. 1-2H atoms replaced by F, Cl and/or CN), trans-1,4-cyclohexylene (opt. contg. 1-2H atoms replaced by CN and/or CH3) (1,3,4)-thiazole-2,5-diyl, 1,3-dioxane-2,5-diyl, 1,3-dithiane-2,5-diyl, 1,3-thiazole-2,4-diyl (opt. contg. 1 H atom replaced by F, Cl and/or CN), 1,3-thiazole-2,5-diyl (opt. contg. 1 H atom replaced by F, Cl and/or CN), thiophene-2,4-diyl (opt. contg. 1 H atom replaced by F, Cl and/or CN), thiophene-2,5-diyl (opt. contg. 1-2 H atoms replaced by F, Cl and/or CN) or naphthalene-2,6-diyl(opt. contg. one or more H atoms replaced by F, Cl, and/or CN); C = chiral C atom; G = -CO-O-CH20, -CO-O-, -O-CO-, -O-CO-O-CH2-, -O-CO-O-, -O-CH2-, O, S or single bond; G' = -CO-O-, -CH2-O- or single bond; M - M = -CO-O-, -O-CO-, -O-CO-O-, -CH2-O-, -O-CH2-, -CH2-S-, -S-CH2-, -CH=CH- or single bond; R = optically active or racemic gp. of formula (1)-(9) H, CN, F, Cl, CF3, CHF2, CH2F, OCF3, OCHF2, 1-30C alkyl (opt. contg. one or more CH2 gps. replaced by O, S, -CO-O-, -O-CO-, -O-CO-O-, CO, CS, -CH=CH-1 or -C?=C - cyclopropane-1,2-diyl -Si(CH3)2-, 1,4-phenylene, trans-1,3-cyclohexylene or trans-1,3-cyclopentylene), with the provision that O and/or S atoms are not bonded to each other, and/or \- one H atoms in the alkyl gp. may be replaced by F, Cl, Br, -OR3, -SCN, -OCN or N3 R = 1-6C n-alkyl; R ,R ,R = H or 1-16C alkyl ,opt. contg. one or more CH2 gps. replaced by O and/or -CH=CH- with the provision that the O atoms are non-adjacent, and one or more H atoms in the alky gp. may be replaced by F or Cl; R ,R = R or they may be -(CH2)4- or -(CH2)5- when bonded to an oxirane, dioxolane or tetrahydrofuran system; a-c = 0-1; (a+b+c) = 1-3; and n = 2-6; Also claimed are (i) liq. crystals mixts. (LCM) contg. one or more cpds. (I) and (ii) switch and/or display devices comprising carrier plates, electrode, \- one polariser, \- one orientation layer and (LCM).

    4.
    发明专利
    未知

    公开(公告)号：DE19517060A1

    公开(公告)日：1996-11-14

    申请号：DE19517060

    申请日：1995-05-10

    Applicant: HOECHST AG

    Inventor： MANERO JAVIER DR ,  WINGEN RAINER DR

    IPC: G02F1/13 ,  C07D217/22 ,  C07D401/04 ,  C09K19/34 ,  C07D401/12 ,  C07D401/14 ,  C07D405/04 ,  C07D405/12 ,  C07D405/14 ,  C07D409/04 ,  C07D417/04 ,  C07D417/14 ,  C07F19/00

    Abstract: 1-fluorisoquinoline derivatives of the formula (I) R (-M )a(-A -M )b(-A -M )c-B(-M -A )d(-M -A )e(-M )f-R , in which the symbols and indices have the following meanings: group B is (II); R , R are, for example, alkyl groups with 1-20 C atoms; M , M , M , M , M and M are, for example, -O-, -CO-O-, -O-CO- or a single bond; A , A , A and A are, for example, 1,4-phenylene, pyrimidine-2,5-diyl or trans-1,4-cyclohexylene; and a, b, c, d, e and f are 0 or 1, a condition being that the sum of b, c, d and e is 0, 1 or 2. Compounds of formula (I) in the pure state are colourless and as a rule form liquid crystalline mesophases in a temperature range favourable to electro-optical applications. The compounds are chemically and thermally stable and light stable.

    5.
    发明专利
    未知

    公开(公告)号：DE19517038A1

    公开(公告)日：1996-11-14

    申请号：DE19517038

    申请日：1995-05-10

    Applicant: HOECHST AG

    Inventor： MANERO JAVIER DR ,  WINGEN RAINER DR

    IPC: G02F1/13 ,  C07D217/22 ,  C07D401/04 ,  C09K19/34 ,  C09K19/38 ,  C07D217/24 ,  C07D401/12 ,  C07D405/04 ,  C07D405/12 ,  C07D405/14 ,  C07D417/04 ,  C07D417/14 ,  C07D401/14 ,  C07F19/00 ,  C09K19/32

    Abstract: The invention concerns 1,8-difluorisoquinoline derivatives of the formula (I) R (-M )a(-A -M )b(-A -M )c-B(-M -A )d(-M -A )e(-M )f-R , in which the symbols and indices have the following meanings: group B is R , R are, for example, alkyl groups with 1-20 C atoms; M , M , M , M , M and M are, for example, -O-, CO-O-, -O-CO- or a single bond; A , A , A and A are, for example, 1,4-phenylene, pyrimidine-2,5-diyl or trans-1,4-cyclohexylene; and a, b, c, d, e and f are 0 or 1, a condition being that the sum of b, c, d and e is 0, 1 or 2. Compounds of formula (I) in the pure state are colourless and as a rule form liquid crystalline mesophases in a temperature range favourable to electro-optical applications. The compounds are chemically and thermally stable and light stable.

    Pyridazinone(s) improving property profile of liquid crystal mixts.
    6.
    发明专利
    Pyridazinone(s) improving property profile of liquid crystal mixts. 未知

    公开(公告)号：DE4446880A1

    公开(公告)日：1996-07-04

    申请号：DE4446880

    申请日：1994-12-27

    Applicant: HOECHST AG

    Inventor： WINGEN RAINER DR ,  HORNUNG BARBARA ,  MANERO JAVIER DR

    IPC: C07D237/14 ,  C07D237/16 ,  C07D403/12 ,  C09K19/34 ,  C07D401/10 ,  C07D401/12 ,  C07D403/10 ,  C07D405/14 ,  C07D417/04 ,  C07D417/10 ,  C07D417/12 ,  C07D417/14

    Abstract: Pyridazinones of formula (I) are new (where, R1, R2 = CN, F, Cl, 1-20C alkyl, opt. with an asymmetric C atom, in which 1 or more CH2 gps. may be replaced by -O-, -CO-, -CH=CH-, -C?=C-, cyclopropan-1,2-diyl, -SiMe2-, trans-1,4-cyclohexylene or trans-1,3-cyclopentylene, without adjacent O atoms, and/or opt. mono- or poly-substd. by F, Cl, Br or -OR3; or an optically active or racemic gp. of e.g. formulae (IIA-C); or one of R1, R2 = H; R3-R7 = H, 1-16C alkyl, opt. with an asymmetric C atom, in which 1 or more CH2 gps. may be replaced by -O- or -CH=CH-, without adjacent O atoms, and/or opt. mono- or poly-substd. by F or Cl; or R4+R5 may = -(CH2)4- or -(CH2)5 if attached to an oxirane, dioxolane, tetrahydrofuran, tetrahydropyran, butyrolactone or valerolactone system; Q = a single bond, -CO-O- or -CH2-O-; M1 = -O-CO-, -CO-O-, -O-CH2-, -CH2-O- or a single bond; M2 = -O-(CH2)n- (n = 1-8) or a single bond; A1 = 1,4-phenylene (Phe), opt. mono- or poly-substd. by F, Cl and/or CN, 1,4-cyclohexylene (Cyc), naphthalen-2,6-diyl (Naph), 4-(cyclohexyl-1,4-diyl)phenyl, biphenyl-4,4'-diyl (Bip), opt. mono- or poly-substd. by F, 4-(pyrimidin-2,5-diyl)phenyl, 4-(pyridin-2,5-diyl)phenyl, 4-(1,3,4-thiadiazol- 2,5-diyl)phenyl, benzothiazol-2,6-diyl, or indan-2,6-diyl; A2 = Phe, opt. mono-substd. by Me or mono- or poly-substd. by F or Cl, Cyc, Naph, or pyridin-2,5-diyl (Pyd); A3 = Phe, opt. mono-substd. by Me or mono- or poly-substd. by F or Cl, Bip, opt. mono- or poly-substd. by F, 4-(cyclohexyl- 1,4-diyl)phenyl, Pyd, opt. mono-substd. by F, benzothiazol-2,6-diyl, indan-2,6-diyl, Naph, Cyc, or pyrimidin-2,5-diyl; X = H, F or Cl; Hal = Cl or F; X' = -CO- or -CH2-; Y' = CN or Me; a, b, c, d, e = 0 or 1 such that a+b+c = 1 or 2). Also claimed are liquid crystal (LC) mixts. contg. cpd(s). (I), pref. mixts. contg. 2-20 components, including 1-10 cpd(s). (I), esp. ferroelectric mixts..

    New phenanthrene derivs.
    7.
    发明专利
    New phenanthrene derivs. 未知

    公开(公告)号：DE19500768A1

    公开(公告)日：1995-09-28

    申请号：DE19500768

    申请日：1995-01-13

    Applicant: HOECHST AG

    Inventor： WINGEN RAINER DR ,  HORNUNG BARBARA DIPL ING

    IPC: C07C43/225 ,  C07D221/10 ,  C07D471/04 ,  C09K19/32 ,  C09K19/34 ,  C07D405/10 ,  G09F9/35

    Abstract: Phenanthrene derivs. of formula (I) are new. In (I), E -E = -N-, -CF- or -CH-; if E (E ) = -N- or -CF-, E and E (E and E ) = -CH-; if E and/or E (E and/or E ) = -CF-, E (E ) = -CH-; if E (E ) = -N-, E (E ) = -CH- and E (E ) may be -CH- or -CH-; one of the gps. E -E must be -N- or -CF-; G = -CH2CH2 or -CH=CH-; R , R = H, CN, F, Cl, CF3 or 1-20C alkyl (opt. with asymmetric C atom, opt. with one or more CH2 gps. replaced by O, S, CO, CH=CH, C?=C, cyclopropane-1,2-diyl, SiMe, 1,4-phenylene (Phe), trans-1,4-cyclohexylene (Cyc) or trans-1,3-cyclopentylene (with no direct links between O atoms or S atoms) and opt. with one or more H atoms substd. by F, Cl, Br or OR ), or one specified chiral gp.; M , M = -COO-, -OCO-, -CH2O-, -OCH2-, -CH2CH2-, -C=C- or a single bond; A , A = Phe or pyridine-2,5-diyl (opt. with 1 or more H replaced by F, Cl and/or CN), pyrazine-2,5-diyl, pyridazine-3,6-diyl or pyrimidine-2,5-diyl (opt. with 1 or 2 H replaced by F, Cl and/or CN), Cyc (opt. with 1 or 2 H replaced by CN and/or Me), (1,3,4)-thiadiazole-2,5-diyl, 1,3-dioxan-2,5-diyl, 1,3-dithiane-2,5-diyl, 1,3-thiazole-2,4-diyl or thiophen-2,4-diyl (all opt. with one H replaced by F, Cl and/or CN), thiophen-2,5-diyl (opt. with 1 or 2 H replaced by F, Cl and/or CN), piperazine-1,4- or -2,5-diyl, naphthalene-2,6-diyl or bicyclo(2.2.2)octane-1,4-diyl (opt. with 1 or more H replaced by F, Cl and/or CN), or 1,3-dioxaborinane-2,5-diyl; n, m = 0 or 1; n + m = not more than 1. Also claimed are liq. crystalline (LC) mixts. contg. one or more cpds. (I). Also claimed are electro-optical switch and display elements contg. such LC mixts.

    Novel 1,3,4-thiadiazole(s) useful as liq. crystal intermediates
    8.
    发明专利
    Novel 1,3,4-thiadiazole(s) useful as liq. crystal intermediates 未知

    公开(公告)号：DE19502178A1

    公开(公告)日：1995-08-03

    申请号：DE19502178

    申请日：1995-01-25

    Applicant: HOECHST AG

    Inventor： FUSS ROBERT W DR ,  MANERO JAVIER DR ,  SCHLOSSER HUBERT DR ,  WINGEN RAINER DR

    IPC: C07D285/12 ,  C07D285/13 ,  C07D417/04 ,  C09K19/34 ,  C07D417/12 ,  C07D417/14 ,  C07F5/05 ,  C07F9/6539 ,  C07F19/00

    Abstract: Novel 1,3,4-thiadiazoles of formula (I) are claimed, as are also (i) the use of (I) as intermediates in the prodn. of components for liq. crystal mixts.; and (ii) the prepn. of the 2-halo derivs. of formula (I) by (a) reacting 2-amino-1,3,4-thiadiazole with Br2; (b) diazotising the 2-bromo cpd. thus obtd.; (c) reacting the diazonium salt with Br2; and (d) reacting the 2,5-dibromo-1,3,4thiadiazole with a boron cpd. of formula (II) under transition metal catalysis in an inert solvent at -78 to 200 deg.C. X-B-A -(M -A -)m(M -A )n-R (I); Q Q -B-A -(M -A )m(-M -A )n-R (II) (sic) and (IIA); X=Cl, Br or I; B=1,3,4-thiadiazol-2,5-diyl; A -A =1,4-phenylene, pyridin-2,5-diyl, naphthalene-2,6-diyl or bicyclo2.2.2 octan-1,4-diyl (with 1 or more H in each of these opt. replaced by F, Cl and/or CN); pyrazin-2,5-diyl, pyridazin-3,6- diyl, pyrimidin-2,5 diyl or thiophen-2,4-diyl (with 1 or 2H in each of these opt. replaced by F, Cl and/or CN); trans-1,4-cyclohexylene (with 1 or 2H opt. replaced by CN and/or Me); 1,3-thiazol-2,4- or 2,5-diyl or thiophen- 2,4-diyl (with 1H of each of these opt. replaced by F, Cl and/or CN); or (1,3,4)-thiadiazol-2,5-diyl, 1,3-dioxan-2,5-diyl 1,3-dithian-2,5-diyl, piperazin-1,4- or 2,5-diyl or 1,3-dioxaborinan-2,5-diyl; M and M =-CO.O-, -O.CO-, -O.CO.O-, -O.CS.O-, -CH2O, -OCH2-, -CH=CH-, -C?=C- or a single bond; R =O-benzyl, H or 1-12C alkyl or alkoxy; m and n=0 or 1; and Q and Q =-OH, 1-4C alkoxy, 1-4C alkyl, Ph (opt. substd. by halogen, 1-4C alkoxy or 1-4C alkyl) or halogen or Q and Q together form a 1-4C alkylenedioxy gp., a methylene gp. (opt. substd. by one or two 1-4C alkyl) or Q , Q and the boron atom are part of a boroxine ring of formula (IIA). NB. In the disclosure (II) is an organometallic cpd. with Y replacing Q Q and being halogen-Mg, Li or -BQ Q .

    9.
    发明专利
    未知

    公开(公告)号：AT116676T

    公开(公告)日：1995-01-15

    申请号：AT91105700

    申请日：1991-04-10

    Applicant: HOECHST AG

    Inventor： HARADA TAKAMASA ,  ROESCH NORBERT DR ,  WINGEN RAINER DR

    IPC: C09K19/54 ,  C09K19/58 ,  G02F1/137

    Abstract: The occurrence of twist states in FLC displays can be suppressed by adding ionophores to FLC mixtures. Applicable ionophores are amides of the general formula I (I) wherein R1, R2, R3 and R4 e.g. are alkyl, cyclohexyl, phenyl or benzyl and X is alkylene with -CH2-groups being replaced by -O-, 1,2-phenylene or 1,2-cyclohexylene.

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