Optically active compound

Details Optically active compound Optically active compound

1989-03-20

1993-04-06

Stoll, Robert L.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25219901, 568647, 568585, 568588, C09K 1952, C09K 1912, C07C 4100, C07C 4300

Patent

active

052001113

ABSTRACT:
An optically active compound of the formula (I): ##STR1## R is a halogen atom, a cyano group, an alkyl group having 1 to 18 carbon atoms, an alkoxy group having 1 to 18 carbon atoms --R' or --O--R' group; R' is a ##STR2## group, wherein Y is a halogen atom, a hydroxyl group, an alkoxy group having 1 to 18 carbon atoms or an acyloxy group having 1 to 18 carbon atoms; X is a direct bond or a ##STR3## group; m, n and p each are each 0 or 1, provided that at least one of m, n and p is 1; and * represents an asymetric carbon atom. The optically active compound can impart a desired helical pitch to a liquid crystal composition.

REFERENCES:
patent: 4732699 (1988-03-01), Higuchi et al.
patent: 4775223 (1988-10-01), Yoshinaga et al.
patent: 4786730 (1988-11-01), Shibata et al.

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