Optically active compounds, smectic liquid crystal compositions

Details Optically active compounds, smectic liquid crystal compositions Optically active compounds, smectic liquid crystal compositions

1986-03-21

1988-08-16

Gron, Teddy S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

25229961, 25229963, 25229964, 25229965, 25229966, 25229967, 2522996, 558415, 558416, 558426, 564161, 564171, 564174, 560 1, 560 37, 560 41, 560 45, 560 8, 560 39, 560 42, 560 48, 560 59, 560 73, 560102, 560109, 560 66, 560 83, 560108, 560118, 560 86, 560125, 560126, 560127, C09K 1934, C09K 1930, C09K 1906, C09K 1920

Patent

active

047646195

ABSTRACT:
An optically active compound having the formula: ##STR1## wherein each of Z and Z' is a single bond, --COO--, --OCO--, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 -- or --CH.sub.2 O--, R is an alkyl group having from 1 to 12 carbon atoms, an alkoxyl group having from 1 to 12 carbon atoms, a cyano group or a halogen atom, each of rings A and B is a 1,4-di-substituted phenylene group or a trans-1,4-di-substituted cyclohexylene group, n is 0 or 1, X is ##STR2## wherein * indicates an optical center, and R' is an alkyl group having from 2 to 12 carbon atoms or ##STR3## where R" is a hydrogen atom, an alkyl or alkoxy group having from 1 to 12 carbon atoms, provided that when X is ##STR4## R is the alkyl group or the alkoxy group.

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