OPTICALLY ACTIVE COMPOUND, LIQUID CRYSTAL COMPOSITION AND INTERMEDIATE FOR SYNTHESIS OF OPTICALLY ACTIVE COMPOUND

PURPOSE:To obtain a new and remarkably excellent ferroelectric liquid crystal compound having a high spontaneous polarization and exhibiting a chiral smectic C phase in a wide temperature range. CONSTITUTION:An optmcally active compound of formula I [R is a 4 to 22C alkyl or alkoxy; X is, e.g. 1,4-p...

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Bibliographische Detailangaben
Hauptverfasser:	HORIE TOSHIO, TSURU SHINJI, NAKAMURA KOZABURO, KOBAYASHI SHOGO, ISHIBASHI SHIGEKI, MARUNO TORU
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ADHESIVES CHEMISTRY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DYES FREQUENCY-CHANGING HETEROCYCLIC COMPOUNDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC CHEMISTRY PAINTS PHYSICS POLISHES TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain a new and remarkably excellent ferroelectric liquid crystal compound having a high spontaneous polarization and exhibiting a chiral smectic C phase in a wide temperature range. CONSTITUTION:An optmcally active compound of formula I [R is a 4 to 22C alkyl or alkoxy; X is, e.g. 1,4-phenylene or a group of formula II (Q is a halogen, nitrile or hydroxyl group) ; Y is a halogen, methyl or nitrile; Z is a methylhalogen or CF3; R is a 1 to 10C alkyl, an alkoxy, etc.; C is an optically actrve carbon; (m) is 0 or 1; (n) is an integer of 0 to 6], e.g. 3-chloro4-(1-oxo-2- methylbutyl)phenyl 4-(4'-octyloxyphenyl)benzoate. The compound of formula I can be synthesized by reactting an acid halide with a substituted phenol having an optically active group and represented by formula III in the presence of a basic solvent such as pyridine. In addition, a quick-response liquid crystal composition can be obtained by blending one or more kinds of the above optically active compounds.