公开(公告)号：DE3855862D1

公开(公告)日：1997-05-15

申请号：DE3855862

申请日：1988-12-21

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：DE3751202D1

公开(公告)日：1995-05-04

申请号：DE3751202

申请日：1987-12-21

Applicant: HOECHST AG

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

IPC: C07D207/16 ,  C07D401/12 ,  C07D403/06 ,  C07D403/12 ,  C09K19/20 ,  C09K19/58

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：DE3506435A1

公开(公告)日：1986-08-28

申请号：DE3506435

申请日：1985-02-23

Applicant: HOECHST AG

Inventor： BENDER ALBERT DR ,  GUENTHER DIETER DR

IPC: C07D279/02 ,  C07D455/04 ,  C07D495/02 ,  C07D417/10 ,  C07D487/06 ,  C07D209/86

Abstract: Method and composition for a ketosultam of the general formula in which R1 and R2 are identical or different and each denote hydrogen, (C1 to C8)-alkyl, which is optionally substituted by one or several halogen atoms, hydroxy groups, cyano groups or (C1 to C4)-alkoxy groups, or phenyl, R3 denotes hydrogen or a (C1 to C4)-alkyl group or (C1 to C4)-alkoxy group, n is a number from 1 to 4, or R1, R2 and R3, together with the corresponding aminophenyl group, denote julolidinyl or N-(C1 to C3)-alkylcarbazol-3-yl. The compounds are used in the preparation of sensitizers and dyes.

公开(公告)号：DE2929414A1

公开(公告)日：1981-02-05

申请号：DE2929414

申请日：1979-07-20

Applicant: HOECHST AG

Inventor： GUENTHER DIETER DR

IPC: C07D471/14 ,  C09B57/00 ,  G03C1/815 ,  G03G5/06 ,  D06L3/12

Abstract: New pyrimido-(5',4',5,6)-pyrido- (1,2-a)-benzimidazole cpds. (I) have the formula (in which R1 and/or R2 is halogen, R3O or R4R5N. R3 is H, alkyl or aryl. R4 is (hydroxy)alkyl or ar(alk)yl and R5 is H, (hydroxy)alkyl or aryl; or R4 and R5 together with the N atom are an imidazol-1-yl, 1,2,4-triazol-1- or -4-yl or 1,2,3- triazol-1- or -2-yl gp. R6 is azole, (substd.) aryl or acyl gp. or a COOH gp. or its functional deriv.). Pref. R1 and R2 are Cl, OH or di-(1-4C) alkylamino and R6 is a benzimidazol-2-yl, benzoxazol-2-yl or benzothiazol-2-yl gp.

公开(公告)号：DE2712942A1

公开(公告)日：1978-10-05

申请号：DE2712942

申请日：1977-03-24

Applicant: HOECHST AG

Inventor： GUENTHER DIETER DR ,  ERCKEL RUEDIGER DR ,  ROESCH GUENTHER

IPC: C09B57/00 ,  C07D519/00 ,  C07D498/04 ,  C07D413/10 ,  D06L3/12

公开(公告)号：DE2629703A1

公开(公告)日：1978-01-12

申请号：DE2629703

申请日：1976-07-02

Applicant: HOECHST AG

Inventor： GUENTHER DIETER DR ,  SCHINZEL ERICH DR ,  ERCKEL RUEDIGER DR ,  ROESCH GUENTER

IPC: C09K3/00 ,  C09B57/00 ,  D06L3/12

Abstract: Mixtures of optical brighteners containing 0.05 to 1% of a 4-benzoxazolystilbene derivative and 1 to 0.05% of a 1,4-bis-benzoxazolyl- or bis-benzthiazolyl-naphthalene derivative. These mixtures show a higher degree of whiteness than an equal amount of only one of the two components.

公开(公告)号：DE2320528A1

公开(公告)日：1974-11-07

申请号：DE2320528

申请日：1973-04-21

Applicant: HOECHST AG

Inventor： GUENTHER DIETER DR ,  HITSCHFEL GERHARD ,  NESTLER HANS JUERGEN ,  ROESCH GUENTER

IPC: C07C1/00 ,  C07C1/32 ,  C07C15/54 ,  C07C67/00 ,  C07D235/08 ,  C07D235/16 ,  C07D249/06 ,  C07D249/08 ,  C07D263/56 ,  C07D263/60 ,  C07D263/62 ,  C07D263/64 ,  C07D271/10 ,  C07D277/64 ,  C07D307/79 ,  C07D307/80 ,  C09B57/00 ,  C09K3/00 ,  C07D85/44 ,  C07C121/70 ,  C07D5/40 ,  C07D85/54

公开(公告)号：DE1941375A1

公开(公告)日：1971-02-25

申请号：DE1941375

申请日：1969-08-14

Applicant: HOECHST AG

Inventor： GUENTHER DIETER DR ,  HAPPE WILHELM DR ,  HOYER ERNST DR ,  VOLLMANN HANSJOERG DR

IPC: C09B29/033 ,  C09B29/08 ,  H02K1/18

公开(公告)号：DE3881932D1

公开(公告)日：1993-07-29

申请号：DE3881932

申请日：1988-04-02

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

Abstract: Liquid crystal media for electro-optical switches and displays utilising the electroclinic effect, which are in the SA, SB or SE phase in the operating state, contain cpds. (I) with a polar chiral -Z gp. derived from alpha-chlorocarboxylic acids, alpha-hydroxypropionic acid, proline, epoxy cpds. or their thio-analogues of formulae (A-E): alone or mixed with other components. The prepn. of (I) is described in (A) Ch. Bahr & G. Heppke, Mol. Cryst. Liq. Cryst. Lett, 1986, 4, 31 and the literature cited in this; (B) DE 36 38 119; (C) DE 36 44 522; (D,E) DE 36 33 968.

公开(公告)号：DE3531788A1

公开(公告)日：1987-03-12

申请号：DE3531788

申请日：1985-09-06

Applicant: HOECHST AG

Inventor： GUENTHER DIETER DR

IPC: C07C311/01 ,  A01N41/06 ,  C07C67/00 ,  C07C301/00 ,  C07C303/40 ,  C09B43/00 ,  D06M13/02 ,  D06M13/322 ,  D06M13/402 ,  D06M13/438 ,  C07C143/74

Abstract: The invention relates to new 3-halogenoacetonesulfonamides of the formula X-CH2-CO-CH2-SO2NH2 in which X=F, Cl, Br or I, and to the preparation and use thereof. The preparation of the bromine compound according to the invention is effected by reacting acetonesulfonamide with bromine in aqueous solution. The fluorine, chlorine or iodine compound is prepared by reacting the bromine compound with a fluoride, chloride or iodide in an aprotic solvent. The compounds according to the invention can be used for the preparation of azo dyestuffs, plant protection agents, pharmaceuticals and textile auxiliaries.