公开(公告)号：DE59603287D1

公开(公告)日：1999-11-11

申请号：DE59603287

申请日：1996-05-10

Applicant: HOECHST AG

Inventor： MANERO JAVIER ,  WINGEN RAINER

IPC: G02F1/13 ,  C07D217/22 ,  C07D401/04 ,  C09K19/34

Abstract: PCT No. PCT/EP96/01995 Sec. 371 Date Nov. 6, 1997 Sec. 102(e) Date Nov. 6, 1997 PCT Filed May 10, 1996 PCT Pub. No. WO96/35675 PCT Pub. Date Nov. 14, 19961-Fluoro-5,6,7,8-tetrahydroisoquinoline derivatives, and their use in liquid-crystalline mixtures 1-Fluoro-5,6,7,8-tetrahydroisoquinoline derivatives of the formula (I) R1( -M1)a(-A1-M2)b(-A2-M3)c-B(-M4-A3)d(-M5-A4)e(-M6f-R2(I)in which the symbols and indices have the following meanings: the group B is R1 and R2 are, for example, alkyl radicals having 1 to 20 carbon atoms; M1, M2, M3, M4, M5 and M6 are, for example, -O-, -CO-O-, -O-CO- or a single bond; A1, A2, A3 and A4 are, for example, 1,4-phenylene, pyrimidine-2,5-diyl or trans-1,4-cyclohexylene, and a, b, c, d, e and f are zero or one, with the proviso that the sum of b, c, d and e is 0, 1 or 2. The compounds of the formula (I) are colorless in the pure state and generally form liquid-crystalline mesophases in a temperature range which is favorably located for electro-optical use. They are stable chemically, thermally and to light.

公开(公告)号：DE59305175D1

公开(公告)日：1997-02-27

申请号：DE59305175

申请日：1993-10-06

Applicant: HOECHST AG

Inventor： SCHLOSSER HUBERT ,  WINGEN RAINER ,  MANERO JAVIER

IPC: G02F1/13 ,  C07B37/04 ,  C07D213/24 ,  C07D213/30 ,  C07D213/61 ,  C07D213/64 ,  C07D239/26 ,  C07D239/28 ,  C07D239/30 ,  C07D239/80 ,  C07D401/04 ,  C07D401/14 ,  C09K19/34 ,  C09K19/40

Abstract: PCT No. PCT/EP93/02733 Sec. 371 Date Apr. 24, 1995 Sec. 102(e) Date Apr. 24, 1995 PCT Filed Oct. 6, 1993 PCT Pub. No. WO94/10105 PCT Pub. Date May 11, 1994A process for preparing polycyclic aromatic compounds by cross-coupling aromatic boronic acids with aromatic halogen compounds or perfluoroalkylsulfonates in the presence of metallic palladium, if desired applied to a support material, as catalyst, wherein the coupling is carried out in the presence of a ligand and a base. The process of the invention allows the yield of polycyclic aromatic compounds to be significantly increased in comparison with processes not using a ligand and thus allows a yield optimum for the Pd(0)-catalyzed cross-coupling of aromatic boronic acids with aromatic halogen compounds to be achieved.

公开(公告)号：CA2161601A1

公开(公告)日：1996-04-29

申请号：CA2161601

申请日：1995-10-27

Applicant: HOECHST AG

Inventor： HABER STEFFEN ,  MANERO JAVIER ,  BECK GERHARD ,  LAGOUARDAT JACQUES

IPC: B01J31/12 ,  C07B37/04 ,  C07B61/00 ,  C07C29/32 ,  C07C33/30 ,  C07C33/48 ,  C07C41/30 ,  C07C43/23 ,  C07D239/26 ,  C07C1/26 ,  C07C15/48 ,  C07C209/68 ,  C07C211/28 ,  C07C231/12 ,  C07C233/05 ,  C07D213/30 ,  C07D241/12 ,  C07F7/08

Abstract: A process for preparing polycyclic aromatic compounds by cross-coupling terminal alkynes with aromatic halogen compounds or aromatic perfluoroalkylsulfonates under palladium catalysis in the presence of at least one water-soluble complexing ligand, wherein the reaction medium forms an aqueous phase and an organic phase and the palladium is added in the form of a palladium compound soluble in the organic phase or in solid form as palladium metal, in particular applied to a support. The reaction of the invention proceeds chemoselectively, so that even electrophilic groups such as esters or nitriles do not impair the course of the reaction. The process of the invention enables organic compounds to be prepared economically in very good yields and at the same time in very high purity, in particular without contamination by the complexing ligands.

公开(公告)号：DE59308481D1

公开(公告)日：1998-06-04

申请号：DE59308481

申请日：1993-10-06

Applicant: HOECHST AG

Inventor： SCHLOSSER HUBERT ,  WINGEN RAINER ,  MANERO JAVIER

IPC: G02F1/13 ,  B01J23/44 ,  C07B61/00 ,  C07C39/14 ,  C07C39/15 ,  C07C39/24 ,  C07C39/38 ,  C07C41/16 ,  C07C41/30 ,  C07C43/225 ,  C07D213/30 ,  C07D213/61 ,  C07D239/26 ,  C07D239/30 ,  C07D241/16 ,  C09K19/12 ,  C09K19/20 ,  C09K19/30 ,  C09K19/34

Abstract: PCT No. PCT/EP93/02732 Sec. 371 Date Jun. 13, 1995 Sec. 102(e) Date Jun. 13, 1995 PCT Filed Oct. 6, 1993 PCT Pub. No. WO94/10152 PCT Pub. Date May 11, 1994Bifunctional compounds of the formula (I), ne-2,6-diyl or is naphthalene-2,6-diyl or U, X, Y and Z are -CH=, -CF= and -N=, with the proviso that -CF= and -N= may each only be represented at most twice per six-membered ring, and that -CF= and -N= may not at the same time be represented twice in a six-membered ring; Hal is Cl, Br or I; or H, if X and/or Y are -CF=R3 is CH3 or OCH3 l is 0 or 1 m and n are 0, 1, 2 or 3. The compounds of the formula I are useful intermediates for the preparation of liquid-crystalline mixtures.

公开(公告)号：ES2101861T3

公开(公告)日：1997-07-16

申请号：ES92917608

申请日：1992-08-19

Applicant: HOECHST AG

Inventor： MANERO JAVIER ,  ROSCH NORBERT

IPC: C07D273/00 ,  C07D273/01 ,  C07D273/08 ,  C07D285/00 ,  C07D291/02 ,  C07F7/07 ,  C09K19/54 ,  C09K19/58 ,  G02F1/13 ,  G02F1/1337 ,  C07D257/02 ,  C07D259/00

Abstract: Decomposition-sensitive complex ligands can be stabilised by derivatisation with the aid of bulky secondary or tertiary carboxylic or sulphonic acids. These stabilised derivatives can be added to alignment layers and liquid-crystal mixtures and increase the contrast and brightness of the FLC display.

公开(公告)号：DE59208248D1

公开(公告)日：1997-04-24

申请号：DE59208248

申请日：1992-08-19

Applicant: HOECHST AG

Inventor： MANERO JAVIER ,  ROESCH NORBERT

IPC: C07D273/00 ,  C07D273/01 ,  C07D273/08 ,  C07D285/00 ,  C07D291/02 ,  C07F7/07 ,  C09K19/54 ,  C09K19/58 ,  G02F1/13 ,  G02F1/1337 ,  C07D257/02 ,  C07D259/00

Abstract: Decomposition-sensitive complex ligands can be stabilised by derivatisation with the aid of bulky secondary or tertiary carboxylic or sulphonic acids. These stabilised derivatives can be added to alignment layers and liquid-crystal mixtures and increase the contrast and brightness of the FLC display.