Patent ID: 7022259

Claim:
A liquid crystal compound with high helical twisting power having a formula (I), of: or a formula (II), of: wherein A′ comprises naturally occurring organic multi-ring alcoholates selected from alcoholates of cinchonidine, and quinine; A comprises naturally occurring organic multi-ring alcoholates selected from alcoholates of terpenol, borneol, cinchonidine, and quinine; R 1 is hydrogen, alkyl, thioalkyl, or alkyloxy group, wherein alkyl, thioalkyl, and alkyloxy group can be straight or branched and have 1 to 10 carbon atoms optionally substituted with at least one fluorine atom; n is 1, 2, or 3; and G is the same or different and is unsubstituted or substituted cycloalkyl, heterocyclic, aryl, heteroaryl, arylalkyl, or heteroarylalkyl group, and is optionally substituted with at least one fluorine atom, alkyl, or alkyloxy group.