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Patent Searching and Data


Title:
ANTIFERROELECTRIC LIQUID CRYSTAL COMPOUND
Document Type and Number:
Japanese Patent JPH10287624
Kind Code:
A
Abstract:

To obtain a new liquid crystal compound useful for a component for practical liquid crystal material, having a wide temperature range of an antiferroelectric phase and a low melting point.

This compound is shown by the formula ((m) is an integer of 6-12; X is H or F; (p) is an integer of 5-7; (q) is 2 or 4; C* is an asymmetric carbon atom) such as R-(+)-3-fluoro-4-(1-trifluoromethyl-6- ethoxyhexyloxycarbonyl)phenyl-4'-decanoyloxybiphenyl-4-carboxylate. The compound is obtained by reacting an alkyl bromide with a sodium alkyl oxide to give an ether compound, carrying out carbon increasing reaction by using Grignard reagent and trifluoroacetic acid, reduction of a ketone and acetylation a racemic alcohol with acetic anhydride to form an acetate and subjecting the acetate to optical resolution with a lipase.


Inventors:
MINE TAKAKIYO
KINO MASAHIRO
YUI TOMOYUKI
YOSHIOKA YASUE
Application Number:
JP9604097A
Publication Date:
October 27, 1998
Filing Date:
April 14, 1997
Export Citation:
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Assignee:
MITSUBISHI GAS CHEMICAL CO
International Classes:
G02F1/13; C07C69/94; C09K19/20; (IPC1-7): C07C69/94; C09K19/20; G02F1/13