Pyrimidine derivatives

Details Pyrimidine derivatives Pyrimidine derivatives

1990-03-23

1991-07-09

Maples, John S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 544245, C09K 1934, C07D23900

Patent

active

050303821

ABSTRACT:
2-(3',5'-difluoro-4'-cyanophenyl)pyrimidine derivatives represented by the general formula: ##STR1## wherein R is a straight chain alkyl having 1 to 10 carbon atoms, n is 0 or 1, the cyclohexane ring is the trans isomer, exhibiting the nematic phase and having a low threshold voltage. The difluorocyanophenyl pyrimidine derivatives may be included in liquid crystal compositions for improved display devices having a low threshold voltage and a low driving voltage.

REFERENCES:
patent: 4551264 (1985-11-01), Eidenschink et al.
patent: 4820839 (1989-04-01), Kranse et al.

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