Process for producing an optically active benzoic acid derivativ

Details Process for producing an optically active benzoic acid derivativ Process for producing an optically active benzoic acid derivativ

1992-01-30

1993-07-20

Stoll, Robert L.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229964, 25229967, 560 18, C09K 1912, C09K 1920, C07C32100

Patent

active

052290328

ABSTRACT:
An optically active benzoic acid derivative represented by formula (I): ##STR1## wherein R represents a straight chain alkyl group having 6 to 14 carbon atoms; Q* represents an optically active branched chain alkyl group having an asymmetric carbon atom; and m and n each represents an integer of 0 or 1, provided that m is not 0 when n is 1, a process for the production thereof, and a liquid crystal device element using the same are disclosed. The benzoic acid derivative exhibits a chiral smectic phase over a wide temperature range, a large spontaneous polarization and a high speed response.

REFERENCES:
patent: 4828754 (1989-05-01), Takehara et al.
patent: 4876027 (1989-10-01), Yoshinga et al.
patent: 4943385 (1990-07-01), Inoue et al.
patent: 4943386 (1990-07-01), Takehara et al.
patent: 5034152 (1991-07-01), Katagiri et al.
patent: 5055225 (1991-10-01), Naijoh et al.

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