Optically active pyridines useful in liquid crystal form for ele

Details Optically active pyridines useful in liquid crystal form for ele Optically active pyridines useful in liquid crystal form for ele

1988-03-25

1989-11-14

Rotman, Alan L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

350350R, 350350S, 546346, C07D21330

Patent

active

048809365

ABSTRACT:
An optically active compound represented by formula (I): ##STR1## wherein R represents a straight chain alkyl group having from 2 to 12 carbon atoms; R' represents a straight chain alkyl or alkoxy group having from 1 to 20 carbon atoms; C represents an asymmetric carbon atom; A represents ##STR2## and X and Y each represents a hydrogen atom or a fluorine atom, provided that X and Y do not simultaneously represent a fluorine atom. The compound (I) reduces a temperature dependence of the threshold voltage of a nematic liquid crystal composition when added thereto in a small amount.

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