2,5-diphenylpyrimidine compound

Details 2,5-diphenylpyrimidine compound 2,5-diphenylpyrimidine compound

1989-10-25

1992-03-31

Maples, John S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

544298, 544335, C09K 1934, C07D23902

Patent

active

051005786

ABSTRACT:
An optically active compound having a large spontaneous polarization ps value (ps) particularly for realizing a high speed response, and a liquid crystal composition are provided, which compound is an optically active 2,5-diphenylpyrimidine compound expressed by the formula ##STR1## wherein R.sup.1 is 1-20C alkyl or alkoxy, R.sup.2 is 1-20C alkyl, A is ##STR2## and * indicates an asymmetric carbon atom.

REFERENCES:
patent: 4834904 (1989-05-01), Krause et al.
patent: 4892393 (1990-01-01), Terashima et al.
patent: 4900472 (1990-02-01), Miyazawa et al.
patent: 4900473 (1990-02-01), Miyazawa et al.
patent: 4911863 (1990-03-01), Sage et al.

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