Title:
OPTICALLY ACTIVE PYRAZINE COMPOUND
Document Type and Number:
Japanese Patent JPH0390068
Kind Code:
A
Abstract:
NEW MATERIAL:The optically active pyrazine compound of formula I (R1 is 6-18C alkyl; R2 is 1-12C alkyl; m is 0 or 1; n is 0 or 1; C labeled with *is asymmetric carbon atom).
EXAMPLE: 4-(2-Dodecyloxypyrazin-5-yl)benzoic acid (R)-4 [1-(2-methoxycarbonyl) ethoxycarbonyl]phenyl ester.
USE: An electro-optical element. It has excellent physical and chemical stability and gives a liquid crystal having low liquid crystal temperature range and high response by itself or as a mixture with other compound.
PREPARATION: The compound of formula I can be produced e.g. by reacting an optically active phenolic compound of formula II with a carboxylic acid of formula III or its acid chloride.
Inventors:
TAKEDA MAKOTO
SAITO MASAKI
WADA NORIKO
INUI YUKIYOSHI
SEO SHOICHI
IWANE HIROSHI
SAITO MASAKI
WADA NORIKO
INUI YUKIYOSHI
SEO SHOICHI
IWANE HIROSHI
Application Number:
JP22519889A
Publication Date:
April 16, 1991
Filing Date:
August 31, 1989
Export Citation:
Assignee:
MITSUBISHI PETROCHEMICAL CO
International Classes:
G02F1/13; C07D241/18; C09K19/34; C09K19/54; (IPC1-7): C07D241/18; C09K19/34; C09K19/54; G02F1/13
Attorney, Agent or Firm:
Takaya Yamamoto