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Title:
LIQUID CRYSTAL
Document Type and Number:
Japanese Patent JPS62228042
Kind Code:
A
Abstract:

NEW MATERIAL:A compound shown by formula I (R1 is straight-chain or branched 1W18C alkyl; R2 is optically active halogenated alkyl or optically active halogenated aralkyl; n and o are 1W3 and n+o is ≤6; X is single bond, -O-, -COO-, -O-COO- or -OCO-; Y is -COO-, -OCO-, -N=CH-, etc.; Z is -COO-CH2-, -O-CH2-, -O-COO-CH2-, etc.; Ph' is 1,4-phenylene, 1,4-phenylene obtained by replacing benzene ring with halogen, cyano or nitro).

USE: Readily taking a chiral smectic C phase and useful as a ferroelectric liquid crystal material and a memory type display element of heat writing, laser writing, etc.

PREPARATION: For example, a benzoic acid derivative shown by formula II is treated with thionyl chloride to give an acid chloride, which is reacted with a compound shown by formula III in a basic solvent to give a compound shown by formula I wherein Y is -COO-.


Inventors:
HIGUCHI RYOICHI
SAKURAI TAKAO
AKAIWA KIRIKO
MIKAMI NAOKO
TAHOHASHI KEN
TAKEUCHI KOJI
Application Number:
JP16955786A
Publication Date:
October 06, 1987
Filing Date:
July 18, 1986
Export Citation:
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Assignee:
AJINOMOTO KK
International Classes:
C07C69/90; C07C67/00; C07C69/92; C07C69/94; C07C201/00; C07C205/37; C07C205/57; C07C241/00; C07C251/24; C07C253/00; C07C255/50; C07C255/54; C07C255/55; C07C255/57; C07C255/58; C07C255/61; C09K19/16; C09K19/20; C09K19/22; (IPC1-7): C07C69/90; C07C69/92; C07C69/94; C07C79/35; C07C79/46; C07C119/10; C07C121/52; C07C121/60; C07C121/75; C07C121/78; C07C121/84; C09K19/16; C09K19/20; C09K19/22
Domestic Patent References:
JPS49132022A1974-12-18



 
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