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1. (WO2001000548) COMPOUND HAVING TETRAHYDRONAPHTHALENE SKELETON AND LIQUID CRYSTAL COMPOSITION CONTAINING THE SAME

Pub. No.:    WO/2001/000548    International Application No.:    PCT/JP1999/004919
Publication Date: Fri Jan 05 00:59:59 CET 2001 International Filing Date: Sat Sep 11 01:59:59 CEST 1999
IPC: C07C 255/50
C07C 255/52
C07D 213/30
C09K 19/32
C09K 19/34
Applicants: DAINIPPON INK AND CHEMICALS, INC.

KUSUMOTO, Tetsuo

SAITOH, Yoshitaka

NEGISHI, Makoto

NAGASHIMA, Yutaka

TAKEHARA, Sadao

TAKATSU, Haruyoshi

GRAHE, Gerwald

FRINGS, Rainer, Bruno

PITHART, Cornelia

Inventors: KUSUMOTO, Tetsuo

SAITOH, Yoshitaka

NEGISHI, Makoto

NAGASHIMA, Yutaka

TAKEHARA, Sadao

TAKATSU, Haruyoshi

GRAHE, Gerwald

FRINGS, Rainer, Bruno

PITHART, Cornelia

Title: COMPOUND HAVING TETRAHYDRONAPHTHALENE SKELETON AND LIQUID CRYSTAL COMPOSITION CONTAINING THE SAME
Abstract:
A tetrahydronaphthalene derivative represented by general formula (I) and a liquid crystal composition containing the same. The compound having general formula (I) has not only excellent properties as a liquid crystal, but also excellent compatibility with a liquid crystal compound or composition being currently used, and further the addition thereof to such a compound or composition allows the marked reduction of a threshold value for voltage with little detriment to response characteristics. The above compound can be commercially produced with ease, and is colorless and chemically stable. Accordingly, a liquid crystal composition containing the compound is a practical liquid crystal which is extremely useful for a liquid crystal display which requires a wide working temperature range, an operation at a low voltage and a fast response.