Optically active aromatic compounds, preparation process therefo

Details Optically active aromatic compounds, preparation process therefo Optically active aromatic compounds, preparation process therefo

1993-09-21

1994-12-20

Tucker, Philip

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229967, 560 59, 560 64, 560 65, 560 73, 560102, 560103, 560105, 560107, 560108, 560109, 560111, 560112, C09K 1912, C09K 1920, C07C 6976

Patent

active

053743768

ABSTRACT:
Disclosed are herein optically active aromatic compounds represented by the formula (I): ##STR1## wherein X represents --COO-- or --OCO--; Y represents --COO--, --OCO-- or --O--; R.sub.2 represents an alkyl or alkoxyalkyl group having 1 to 20 carbon atoms unsubstituted or substituted by a halogen atom; R.sub.1 represents an alkyl group having 3 to 20 carbon atoms;
Z represents ##STR2## wherein p represents a number of 1 to 5 and * indicates an asymmetric carbon atom; l and k each represents a number of 1 or 2; m and s each represents a number of 0 or 1, which are useful as a liquid crystal.

REFERENCES:
patent: 4911863 (1990-03-01), Sage et al.
patent: 5002693 (1991-03-01), Higashii et al.
patent: 5013479 (1991-05-01), Minai et al.
patent: 5124070 (1992-06-01), Higashii et al.
Patent Abstracts of Japan, 14th Oct. 1988, p. 166 C 536; & JP-A-63 135 346 (Canon Inc.) Jul. 06, 1988.

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