Fluoroalkoxydiphenyl pyrimidine, liquid crystal composition and

Details Fluoroalkoxydiphenyl pyrimidine, liquid crystal composition and Fluoroalkoxydiphenyl pyrimidine, liquid crystal composition and

1989-03-20

1990-10-16

Stoll, Robert L.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 544335, 350350R, 350350S, C09K 1934, C07D23902

Patent

active

049632884

ABSTRACT:
New fluoroalkoxydiphenyl pyrimidines which are organic compounds having optically active groups, liquid crystal compositions containing the said compounds and electro-optic elements using the said compositions are provided.
The compounds have the following general formula: ##STR1## wherein R.sup.1 is an alkyl or alkoxy group having 1-20 carbon atoms, a halogen atom or a cyano group, R.sup.2 is a straight-chain or branched chain alkyl group having 1-15 carbon atoms, --A-- is a group of ##STR2## X and Y independently indicate a hydrogen atom, a halogen atom or a cyano group, and * indicates that its carbon atom is an asymmetric carbon atom.

REFERENCES:
patent: 4309539 (1982-01-01), Boller et al.
patent: 4725688 (1988-02-01), Taguchi et al.
patent: 4764636 (1988-08-01), Sasaki et al.
patent: 4820839 (1989-04-01), Krause et al.
patent: 4834904 (1989-05-01), Krause et al.

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