Title:
HALOGENATED BENZENE DERIVATIVES AND LIQUID CRYSTALLINE MEDIUM
Document Type and Number:
WIPO Patent Application WO1991003445
Kind Code:
A3
Abstract:
The invention relates to novel halogenated benzene derivatives of the formula I I in which n is 1 to 7 [sic], the rings A and B are each trans-1,4-cyclohexylene, or one of the rings A and B is alternatively 1,4-phenylene or 3-fluoro-l,4-phenylene, X is F, C1, CHF2, -CF3, -CN, -OCF3 or -OCHF2, Y and Z are each, independently of one another, H or F, r=1 or, in the case where s=1, B=trans-1,4-cyclohexylene and simultaneously X=-CHF2, -CF3, -OCF3 or -OCHF2, r is alternatively 0, and s=1 or, in the case where B=1,4-phenylene or 3-fluoro-1,4-phenylene, s=0.
Inventors:
HITTICH REINHARD (DE)
POETSCH EIKE (DE)
REIFFENRATH VOLKER (DE)
RIEGER BERNHARD (DE)
WAECHTLER ANDREAS (DE)
COATES DAVID (DE)
PLACH HERBERT (DE)
POETSCH EIKE (DE)
REIFFENRATH VOLKER (DE)
RIEGER BERNHARD (DE)
WAECHTLER ANDREAS (DE)
COATES DAVID (DE)
PLACH HERBERT (DE)
Application Number:
PCT/EP1990/001437
Publication Date:
April 18, 1991
Filing Date:
August 30, 1990
Export Citation:
Assignee:
MERCK PATENT GMBH (DE)
International Classes:
G02F1/13; C07C22/04; C07C22/08; C07C25/18; C07C43/225; C07C255/50; C09K19/30; C09K19/42; (IPC1-7): C07C22/08; C07C22/04; C07C25/18; C07C43/225; C07C255/50; C09K19/30; G02F1/13
Foreign References:
EP0272580A2 | 1988-06-29 | |||
EP0256636A2 | 1988-02-24 | |||
EP0144648A2 | 1985-06-19 | |||
EP0149208A2 | 1985-07-24 | |||
EP0205998A1 | 1986-12-30 | |||
EP0291949A2 | 1988-11-23 | |||
JPS6092228A | 1985-05-23 | |||
DE3223637A1 | 1983-01-27 | |||
EP0280902A1 | 1988-09-07 | |||
EP0102047A1 | 1984-03-07 | |||
EP0316715A2 | 1989-05-24 | |||
DE3233641A1 | 1983-03-24 | |||
DE3921836A1 | 1990-01-11 |
Other References:
Chemical Abstract, Band 110, 1989, (Columbus, Ohio, US),siehe Seite 760
Download PDF:
Previous Patent: METHOD AND DEVICE FOR OBTAINING LOWER OLEFINES
Next Patent: PHENYLCYCLOHEXANES AND LIQUID CRYSTAL MEDIUM
Next Patent: PHENYLCYCLOHEXANES AND LIQUID CRYSTAL MEDIUM