2-ALKYL-6-SUBSTITUTED-1,2,3,4-TETRAHYDRONAPHTHALENE DERIVATIVE, PRODUCTION THEREOF AND LIQUID CRYSTAL COMPOSITION CONTAINING THE DERIVATIVE

Japanese Patent JPH06279321

A

PURPOSE: To provide a new liquid crystal compound having physical and chemical stability, exhibiting stable nematic phase and having small refractive index anisotropy and low viscosity.

CONSTITUTION: The compound of formula I [R1 is (substituted) 1-14C alkyl, alkoxy, acyloxy, halogen or CN; R2 is (substituted) 1-14C alkyl; rings A and B are (substituted) group of formula II to formula V; X and Y are single bond, (thio)ester bond, methyleneoxy bond or oxymethylene bond; (m) and (n) are 0 or 2 provided that both (m) and (n) are not 0 at the same time; when (n) is 0, at least one of X and Y is single bond]. The compound can be produced by the condensation reaction of (A) an alcoholic component compound or its active derivative as a skeleton component of formula VI or a carboxylic acid compound or its active derivative as a skeleton component of formula VII with (B) a phenolic compound of formula VIII.

KAWADA MITSURU
UESUGI YOSHITAKA
YAMASHITA TOSHIRO
UCHIUMI YUUKA
TERAO HIROSHI
KONDO KATSUMI
OHARA SHUICHI

JP4151693A

October 04, 1994

March 02, 1993

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TAKEDA CHEMICAL INDUSTRIES LTD
HITACHI LTD

C07C13/48; C07C23/18; C07C25/18; C07C41/09; C07C43/20; C07C67/08; C07C69/75; C07C69/92; C07C69/94; C07C253/30; C07C255/50; C07C255/54; C07C255/55; C07C327/26; C07D239/36; C09K19/32; C09K19/34; (IPC1-7): C07C13/48; C07C23/18; C07C25/18; C07C41/09; C07C43/20; C07C67/08; C07C69/75; C07C69/92; C07C69/94; C07C253/30; C07C255/50; C07C255/54; C07C255/55; C07C327/26; C07D239/36; C09K19/32; C09K19/34

Akira Uchida (2 outside)

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