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

1987-01-28

1990-04-03

Terapane, John F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

560 73, 560 59, 25229901, 25229965, 25229967, 3503505, C09K 1912, C09K 1920, C07C 6978, C07C 6992

Patent

active

049142240

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 ahydrogen atom, and Q* represents an optically active alkyl or 1-alkoxyethyl group having an asymmetric carbon atom.

REFERENCES:
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patent: 4643842 (1987-02-01), Taguchi 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: 4780242 (1988-10-01), Miyazawa et al.
patent: 4828754 (1989-05-01), Takehara et al.
European Search Report Corresponding to European Appln. No. 87101059.1 issued on Jan. 19, 1988.
Goodby et al., Liquid Crystals & Ordered Fluids, vol. 4, pp. 1-32 (1984).
Fischer et al., J. Chem. Soc. Chem. Comm., pp. 396-397 (1973).
Gray et al., Liquid Crystals & Plastic Crystals, vol. 1, pp. 142-143 (1974).

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