Optically active 6-substituted naphthalene-2-carboxylic acid ester compound and liquid crystal

Abstract

Abstract NEW MATERIAL:A compound shown by formula I (R1 is 4-18C alkyl; R2 is optically active alkyl; X is C or N). EXAMPLE:6-(6'-n-Octyloxypyridyl-3'-carbonyloxy)naphthalene-2-carboxylic acid (S)-2-methylbutyl ester. USE:One component for a liquid crystal composition. Chiral smectic C liquid crystal useful as a display element material having improved weather resistance, smectic liquid crystal and especially ferroelectricity. Liquid crystal temperature range of chiral smectic C phase of the liquid crystal composition can be effectively extended by using the compound as one component for another liquid crystal compound. PREPARATION:A compound shown by formula II is reacted with thionyl chloride according to the reaction formula to give a compound shown by formula III. Then this compound is dissolved in an aromatic hydrocarbon solvent such as benzene, etc., and reacted with a compound shown by formula IV in the presence of pyridine, etc., to give a compound shown by formula I.

Inventors

• 👤 Yuzo Sakurai
• 👤 桜井　雄三
• 👤 Norio Kitajima
• 👤 教雄 北島
• 👤 Kosuke Sakamoto
• 👤 坂本　講輔

Bibliographic Details