Fluorine-substituted cyclohexylcyclohexene derivative

Details Fluorine-substituted cyclohexylcyclohexene derivative Fluorine-substituted cyclohexylcyclohexene derivative

1990-08-13

1992-02-18

Chan, Nicky

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549333, 549341, 549 39, 549 30, 549 22, C07D31772, C07D31908, C07D33902, C07D33908

Patent

active

050896296

ABSTRACT:
A compound represented by formula (I): ##STR1## wherein wherein R represents a straight chain alkyl group having from 1 to 9 carbon atoms; ##STR2## represents ##STR3## X represents a hydrogen atom or a fluorine atom; and ##STR4## has a trans (equatorial-equatorial) configuration, is disclosed. The compound of formula (I) exhibits a nematic phase in the vicinity of room temperature or in a temperature range higher than room temperature and has a small optical anisotropy and a positive dielectric anisotropy and is, therefore, useful in preparing a liquid crystal display cell excellent in viewing-angle characteristics.

REFERENCES:
patent: 4025558 (1977-05-01), Lednicer
Journal of the American Chemical Society, vol. 99, No. 9, Apr. 27, 1977, pp. 3101-3113.
Patent Abstracts of Japan No. 62-100-582, vol. 11, No. 315, Oct. 14, 1987, p. 115.

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