PHENYLACETYLENE COMPOUND HAVING FLUORINE-SUBSTITUTED ALKYL GROUP OR ALKOXY GROUP IN SKELETON, ITS INTERMEDIATE, METHOD OF PRODUCING THE SAME, LIQUID CRYSTAL COMPOSITION COMPRISING THE SAME COMPOUND AND LIQUID CRYSTAL ELEMENT USING THE SAME COMPOSITION

• Main Authors: MINAMII MASAYOSHI, KONYA NAOTO, SEKINE CHIZU, FUJISAWA KOICHI
• Format: Patent
• Language: English
• Published: 03.04.2001
• Edition: 7
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; ADHESIVES; APPARATUS THEREFOR; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; 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; GENERAL METHODS OF ORGANIC CHEMISTRY; 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; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; POLISHES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; THEIR RELEVANT APPARATUS; TRANSPORTING

PROBLEM TO BE SOLVED: To obtain a new phenylacetylene compound having a large refractive index anisotropy, readily mixable with other liquid crystals and more advantageous to stability to light and a compound useful for producing the phenylacetylene compound, to provide a method for producing the phenylacetylene compound and to obtain both a liquid crystal composition and a liquid crystal element using the phenylacetylene compound. SOLUTION: This phenylacetylene compound is represented by the formula (1) (A1 to A12 denote each H, F or the like; one thereof denotes an F-substituted alkyl group or an F-substituted alkoxy group; and R1 and R2 denote each H, F, CN, SF5 or the like). The compound useful as an intermediate thereof is obtained. The method of producing the phenylacetylene compound is obtained and a liquid crystal composition comprises the phenylacetylene compound. The liquid crystal element uses the liquid crystal composition.