OPTICALLY ACTIVE COMPOUND, LIQUID CRYSTAL COMPOSITION CONTAINING SAME COMPOUND AND LIQUID CRYSTAL LIGHT MODULATOR USING SAME LIQUID CRYSTAL COMPOSITION

Japanese Patent JPH02138234

A

NEW MATERIAL:A compound of formula I [n is 0 or 1; R1 is 3-14C alkyl; R2 and R3 are 1-3C alkyl; R4 is 1-10C alkyl; Q1-Q3 are single bond, ether bond, carboxylic acid ester bond, carbonyl bond or carbonyldioxy bond; M is group of formula II or III (X and Y are single bond, carboxylic acid ester bond, ethyl ene bond, etc.; ring A - ring C are the same or different six-membered-1,4-diyl)].

EXAMPLE: 4'-Octyloxy-4-biphenylcarboxylic acid 4-[(1R,2R)-2-butoxy-1- methylpropoxycarbonyl]phenyl ester.

USE: A ferrodielectric liquid crystal compound which exhibits high spontaneous polarization and has a low, wide temperature range exhibiting a chiral smectic C phase.

PREPARATION: A basic structure carboxylic acid of formula IV is dehydratively condensed with an optically active dichiral secondary alcohol in the presence of a protonic acid in an organic solvent to provide the compound of formula I.

JPH05232438	TELEVISION RECEIVER
WO/2007/018350	APPARATUS FOR SENSING SUBSTRATE

MATSUSHIYA KOUICHI
KAWADA MITSURU
SUGIHARA YOSHIHIRO
KITAMURA TERUO
KONDO KATSUMI
KOBI AKIO

JP32675088A

May 28, 1990

December 23, 1988

Click for automatic bibliography generation  

TAKEDA CHEMICAL INDUSTRIES LTD
HITACHI LTD

G02F1/13; C07C43/20; C07C69/708; C07C69/76; C07C69/90; C07C69/92; C07C69/94; C07D213/63; C07D213/79; C07D237/08; C07D237/14; C07D239/26; C07D239/34; C07D241/12; C07D241/18; C07D319/06; C09K19/12; C09K19/20; C09K19/30; C09K19/34; (IPC1-7): C07C43/20; C07C69/708; C07C69/76; C07C69/90; C07C69/92; C07C69/94; C07D213/63; C07D213/79; C07D237/08; C07D237/14; C07D239/26; C07D239/34; C07D241/12; C07D241/18; C07D319/06; C09K19/12; C09K19/20; C09K19/30; C09K19/34; G02F1/13

Hiroshi Iwata

Previous Patent: JPH02138233

Next Patent: OPTICALLY ACTIVE COMPOUND, THE SAME INTERMEDIATE, LIQUID CRYSTAL COMPOSITION CONTAINING SAME COMPOUN...