Halogen-containing, optically active liquid crystal compound and liquid crystal composition containing same
AssigneeChisso Corporation
InventorsKazutoshi Miyazawa, Hiromichi Inoue, Shinichi Saito, Takashi Inukai, Kanetsugu Terashima, Mitsuyoshi Ichihashi
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Abstract
A novel optically active liquid crystal compound and a liquid crystal composition containing the same are provided, which compound is expressed by the formula ##STR1## wherein R.sub.1 is alkyl or alkoxy of 4-18 C; R.sub.2 is alkyl, alkoxy, acyl or alkoxymethyl of 4-18C; but either one of R.sub.1 or R.sub.2 is an optically active group; either one of X.sub.1 or X.sub.2 is halogen atom and the other is H; m and n each are 0 or 1 and m+n is 0 or 1.
Claims2
An optically active liquid crystal compound of the formula ##STR102## wherein R.sub.1 * is an optically active alkoxy group of 4 to 12 carbon atoms, R.sub.2 is an optically inactive alkyl, alkoxy or alkoxycarbonyl group each of which has 4 to 12 carbon atoms, and X is F or Cl.
An optically active liquid crystal compound of the formula ##STR103## wherein R.sub.1 is an optically inactive alkyl group of 8 to 12 carbon atoms, and R.sub.2 * is an optically active alkyl group of 4 to 8 carbon atoms.
Dependencies are inferred from the claim text.