Optically active liquid crystal compound having methyleneoxy group and composition containing same
AssigneeChisso Corporation
InventorsKazutoshi Miyazawa, Hiromichi Inoue, Takashi Inukai, Kanetsugu Terashima
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Abstract
A novel, superior, optically active liquid crystal compound exhibiting a smectic C* phase, and a liquid crystal composition containing the same are provided, which compound is expressed by the formula ##STR1## wherein X represents --CH.sub.2 O-- or --OCH.sub.2 --; Y represents --COO-- or --OCO--; and either one of R.sup.1 or R.sup.2 represents an optically active alkyl group, alkoxy group or alkoxycarbonyl group and the other represents a non-optically-active alkyl group or alkoxy group each of 4 to 18 carbon atoms.
Claims10
An optically active liquid crystal compound expressed by the formula ##STR33## wherein Y represents --COO-- or --OCO--;
- and either one of R.sup.1 or R.sup.2 represents an optically active 1-methylheptyloxy group, 1-methylheptyloxycarbonyl group or 2-methylbutyloxy group, and the other represents a non-optically active alkyl group or alkoxy group each of 5 to 12 carbon atoms.
Dependencies are inferred from the claim text.