Login| Sign Up| Help| Contact|

Patent Searching and Data


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)
Application Number:
PCT/EP1990/001437
Publication Date:
April 18, 1991
Filing Date:
August 30, 1990
Export Citation:
Click for automatic bibliography generation   Help
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:
EP0272580A21988-06-29
EP0256636A21988-02-24
EP0144648A21985-06-19
EP0149208A21985-07-24
EP0205998A11986-12-30
EP0291949A21988-11-23
JPS6092228A1985-05-23
DE3223637A11983-01-27
EP0280902A11988-09-07
EP0102047A11984-03-07
EP0316715A21989-05-24
DE3233641A11983-03-24
DE3921836A11990-01-11
Other References:
Chemical Abstract, Band 110, 1989, (Columbus, Ohio, US),siehe Seite 760
Download PDF: