公开(公告)号：DE3744024A1

公开(公告)日：1989-07-06

申请号：DE3744024

申请日：1987-12-24

Applicant: HOECHST AG

Inventor： GUENTHER DIETER DR ,  OHLENDORF DIETER DR ,  WINGEN RAINER DR

IPC: C07D211/62 ,  C07D401/12 ,  C07D405/12 ,  C07D409/12 ,  C07D411/12 ,  C07D413/12 ,  C07D417/12 ,  C09K19/34

Abstract: The 1-substituted piperidine-4-carboxylic esters of the formula (I) … … are liquid-crystalline and exhibit in particular Sc or SC phases. In this formula, R or R is a radical of the formula (II) … … in which the rings are aromatic, heteroaromatic or cycloaliphatic molecular building blocks which may have hetero atoms, such as 1,4-phenylene, pyrimidine-2,5-diyl or trans-1,4-cyclohexylene, which are linked via a single bond (where n, p is zero) or via functional groups Z1, Z2 such as CO-O or CH2-O and in which k, n, m, p, q are zero or 1, k + m + p being at least 1 and p being zero if m is zero. The other radical R or R is a substituted or unsubstituted straight- chain or branched alkyl group having 1 to 20 carbon atoms, X1 denotes O, S, phenyleneoxy or CH2 and X2 denotes O or phenyleneoxy.

公开(公告)号：DE3711362A1

公开(公告)日：1988-10-27

申请号：DE3711362

申请日：1987-04-07

Applicant: HOECHST AG

Inventor： BAHR CHRISTIAN ,  HEPPKE GERD PROF DR ,  LOETZSCH DETLEF ,  DUEBAL HANS-ROLF DR ,  GUENTHER DIETER DR ,  HEMMERLING WOLFGANG DR ,  MUELLER INGRID DR ,  WINGEN RAINER DR

IPC: C09K19/12 ,  C09K19/20 ,  C09K19/34 ,  C09K19/58 ,  G02F1/137 ,  C09K19/06 ,  G09F9/35

Abstract: Compounds which contain a polar chiral grouping (moiety) of the formula are suitable for use as a liquid-crystalline medium or as a chiral constituent of liquid-crystalline media in electro-optical switching and display elements which are based on the utilisation of the electroclinic effect and where the liquid-crystalline medium, when in the operating state, is present in the @A, @B or @E phase. These compounds are derivatives of alpha -chlorocarboxylic acids (I), alpha -hydroxypropionic acid (II), proline (III), epoxy compounds (IV) or their thioanalogues (V).

公开(公告)号：DE3644522A1

公开(公告)日：1988-07-14

申请号：DE3644522

申请日：1986-12-24

Applicant: HOECHST AG

Inventor： GUENTER DIETER DR ,  OHLENDORF DIETER DR ,  WINGEN RAINER DR

IPC: C07D207/16 ,  C07D401/12 ,  C07D403/06 ,  C07D403/12 ,  C09K19/20 ,  C09K19/58 ,  G02F1/13 ,  G09F9/35

Abstract: Optically active esters of 1-acylproline of the general formula (I) in which at least one of the radicals R1 and R2 is a mesogenic radical, are suitable as dopes in ferroelectric liquid-crystal mixtures. Proline derivatives in which only the R1 radical is mesogenic are preferred.

公开(公告)号：DE3630933A1

公开(公告)日：1988-03-24

申请号：DE3630933

申请日：1986-09-11

Applicant: HOECHST AG

Inventor： MUELLER INGRID DR ,  OHLENDORF DIETER DR ,  WINGEN RAINER DR

IPC: C07D239/26 ,  C07D239/34 ,  C07D239/38 ,  C09K19/20 ,  C09K19/22 ,  C09K19/34 ,  C07D237/08 ,  C09K19/58 ,  G02F1/13 ,  G09F9/35

Abstract: The novel compounds are chiral esters of alpha -substituted carboxylic acids and mesogenic phenols which are characterised by the formula (I) in which the symbols have the following meanings: R is straight-chain or branched (C3-C12)alkyl, in which one or two non-adjacent CH2 groups may be replaced by O and/or S atoms, A is diazine-2,5-diyl, Y is F, Cl, Br, CN or CF3, and R is straight-chain (C1-C9)alkyl or branched (C3-C9)alkyl. The compounds are preferably used in tilted, smectic liquid-crystal phases which they convert into ferroelectric liquid-crystal phases; they have or induce high values for spontaneous polarisation.

公开(公告)号：DE3363278D1

公开(公告)日：1986-06-05

申请号：DE3363278

申请日：1983-08-24

Applicant: HOECHST AG

Inventor： BOSSE DIETER DR ,  WINGEN RAINER DR ,  HORN KLAUS DR ,  LUTZ WALTER DR

IPC: C08F2/00 ,  C07D239/30 ,  C07D239/42 ,  C07D239/46 ,  C07D239/48 ,  C07D239/50 ,  C07D239/54 ,  C07D239/545 ,  C07D471/04 ,  C08F2/50 ,  G03F7/031 ,  G03C1/68

Abstract: The present invention relates to novel 10-phenyl-1,3,9-triazaanthracenes and to a photopolymerizable mixture which contains, as the essential components, (a) a polymeric binder (b) a polymerizable compound having at least two terminal, ethylenically unsaturated groups and a boiling point of more than 100 DEG C., and (c) a 10-phenyl-1,3,9-triazaanthracene as the photoinitiator.

公开(公告)号：DE3323511A1

公开(公告)日：1985-01-10

申请号：DE3323511

申请日：1983-06-30

Applicant: HOECHST AG

Inventor： BENDER ALBERT DR ,  GUENTHER DIETER DR ,  WILLMS LOTHAR DR ,  WINGEN RAINER DR

IPC: C07C311/00 ,  C07C67/00 ,  C07C301/00 ,  C07C303/36 ,  C07C303/40 ,  C07C311/01 ,  C07C313/00 ,  C07C323/67 ,  C09B29/01 ,  C07C143/77 ,  C07C143/74 ,  C07C143/78

Abstract: The invention relates to new 2-ketosulfonamides of the formula and to a process for their preparation, wherein the reaction mixtures obtained by reacting enamines of the formula with sulfamoyl halides of the formula are hydrolyzed to the 2-ketosulfonamides.

公开(公告)号：DE59307205D1

公开(公告)日：1997-10-02

申请号：DE59307205

申请日：1993-11-23

Applicant: HOECHST AG

Inventor： SCHLOSSER HUBERT DR ,  WINGEN RAINER DR

IPC: C07D239/30

Abstract: A process for the preparation of 2,5-dibromopyrimidine is characterised in that 5-bromo-2-chloropyrimidine is reacted with a solution of hydrogen bromide in a non-aqueous acid at a temperature between 0 and 120@C. The process is economical and allows high yields to be achieved.

公开(公告)号：DE19517056A1

公开(公告)日：1996-11-14

申请号：DE19517056

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 ,  C07D217/24 ,  C07D405/12 ,  C07D405/14 ,  C07D417/04 ,  C07D409/00 ,  C07D405/04 ,  C07D401/14 ,  C07D417/14 ,  C07F19/00 ,  C09K19/32

Abstract: 1-Fluor-5,6,7,8-tetrahydroisoquinoline derivatives of 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 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.

公开(公告)号：DE59010108D1

公开(公告)日：1996-03-21

申请号：DE59010108

申请日：1990-05-10

Applicant: HOECHST AG

Inventor： DE MEIJERE ARMIN PROF DR ,  DUEBAL HANS-ROLF DR ,  ESCHER CLAUS DR ,  HARADA TAKAMASA DR ,  HEMMERLING WOLFGANG DR ,  ILLIAN GERHARD DR ,  MUELLER INGRID DR ,  MURAKAMI MIKIO ,  OHLENDORF DIETER DR ,  WINGEN RAINER DR

IPC: G02F1/13 ,  C07C13/04 ,  C07C13/28 ,  C07C22/00 ,  C07C25/00 ,  C07C43/184 ,  C07C43/205 ,  C07C43/21 ,  C07C69/92 ,  C07C255/45 ,  C07D213/30 ,  C07D237/08 ,  C07D237/14 ,  C07D237/16 ,  C07D237/18 ,  C07D239/26 ,  C07D239/34 ,  C07D239/38 ,  C07D241/12 ,  C07D241/18 ,  C07D285/12 ,  C07D285/125 ,  C07D285/13 ,  C07D405/12 ,  C09K19/20 ,  C09K19/30 ,  C09K19/34

Abstract: The novel cyclopropylalkyl or -alkenyl compounds have the general formula In this formula, the symbols A , A , A denote unsubstituted and in particular substituted (by halogen or CN) aromatic or heteroaromatic molecular building blocks, such as 1,4-phenylene or pyrimidine-2,5- diyl, which are linked via a single bond or via functional groups M , M , such as CO-O or CH2-O; H and m are zero or 1; j, l, n are zero, 1 or 2. The radicals are R , R , R are H or alkyl/alkenyl, R is alkyl/alkenyl or a substituent known from LC chemistry, such as an alpha - haloalkanoic acid radical. G denotes alkylene or alkenylene.

公开(公告)号：DE3885128D1

公开(公告)日：1993-12-02

申请号：DE3885128

申请日：1988-03-22

Applicant: HOECHST AG

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

IPC: G02F1/137 ,  C09K19/34 ,  C09K19/42 ,  G02F1/13 ,  G02F1/141

Abstract: The compounds of the general formula (I) (I) are particularly highly suitable as components of smectic, liquid-crystal mixtures, the symbols having the following meaning: R1 and R2 denote identical or different, straight-chain or branched alkyl or alkenyl groups which can contain asymmetric carbon atoms, containing 2 to 16 carbon atoms, in which one or more non-adjacent -CH2- groups can be replaced by -O- and/or -S-, -A and -B each denote group in which the radicals R1, R2, in each case, are situated at the phenylene part of -A, -B and m and n denote 0 or 1, but m+n is always zero or 1.