DIACETYLENE DERIVATIVE

• Main Authors: KONISHI GENICHI, NAKAJIMA SHUNPEI, KANG SUNGMIN, ARAKAWA YUKI, MATSUMOTO TAKUYA, TOYOOKA TAKEHIRO, WATANABE JUNJI, NISHIMURA RYO
• Format: Patent
• Language: English
• Published: 06.09.2012
• Subjects: 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

PROBLEM TO BE SOLVED: To provide a compound which itself shows liquid crystallinity and has a large refractive index anisotropy, a liquid crystalline composition using the same, and furthermore a liquid crystal element having excellent performance.SOLUTION: The diacetylene derivative is represented by formula (A): R1-Sp1-(Ar1)-(Ar3)-(Phe)-C≡C-C≡C-(Phe)-(Ar4)-(Ar2)-Sp2-R2 (wherein R1 and R2 are each hydrogen, a halogen, a cyano group, an isothiocyanate group, an alkyl group, an alkenyl group, an alkynyl group or a reactive group; Sp1 and Sp2 are each a spacer group; Ar1 and Ar2 are each an optionally substituted aromatic carbocyclic or heterocyclic group; Ar3 and Ar4 are each an optionally substituted heterocyclic group; Phe is an optionally substituted 1,4-phenylene group; and p, q and r are each 0 or 1).