Optically active carboxylic acid derivatives and liquid crystall

Details Optically active carboxylic acid derivatives and liquid crystall Optically active carboxylic acid derivatives and liquid crystall

1988-06-23

1990-03-27

Terapane, John F.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 25229967, 3503505, 560 59, 560 65, 560 73, C09K 1912, C09K 1920, C07C 6978, C07C 6976

Patent

active

049118625

ABSTRACT:
An optically active carboxylic acid derivative represented by the general formula ##STR1## wherein R represents a normal alkyl group having 1 to 20 carbon atoms, m and n represent 0 or 1 but are not 1 at the same time, X represents a hydrogen or halogen atom, Y represents a hydrogen or fluorine atom, provided that when Y is a hydrogen atom, X is a halogen atom, and that when n is 0, Y is a hydrogen atom, and Q* represents an optically active alkyl or 1-alkoxyethyl group having an asymmetric carbon atom.

REFERENCES:
patent: 4542230 (1985-09-01), Gray et al.
patent: 4728458 (1988-03-01), Higuchi et al.
patent: 4737313 (1958-04-01), Saito et al.
patent: 4769176 (1988-09-01), Bradshaw et al.
patent: 4775223 (1988-10-01), Yoslinaga et al.
patent: 4780242 (1988-10-01), Miyazawa et al.
patent: 4795579 (1989-01-01), Vauchier et al.
patent: 4828754 (1989-05-01), Takehara et al.

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