Liquid crystalline compounds, liquid crystal compositions contai

Details Liquid crystalline compounds, liquid crystal compositions contai Liquid crystalline compounds, liquid crystal compositions contai

1994-01-12

1995-03-07

Wu, Shean

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 25229966, 544298, 544335, 549323, 549322, C09K 1934, C07D23902, C07D30726

Patent

active

053955536

ABSTRACT:
Liquid crystalline compounds having an optically active .gamma.-lactone ring of the general formula (A): ##STR1## wherein R.sup.1 is a group selected from the class consisting of ##STR2## n and e are each independently 0 or 1, R.sup.3 is an alkyl group having 1 to 15 carbon atoms or an alkenyl group having 2 to 15 carbon atoms, said alkyl and alkenyl groups having each optionally one or more asymmetric carbon atoms, X and Y are each hydrogen atom, a halogen atom or a cyano group, R.sup.2 is an alkyl group having 1 to 15 carbon atoms or an alkenyl group having 2 to 15 carbon atoms, said alkyl and alkenyl groups having each optionally one or more asymmetric carbon atoms, and * means an asymmetric carbon atom, a liquid crystal composition containing the same and an element for opto-electronics devices comprising the liquid crystal composition.

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