4-N-ALKYLBENZOYL-THIO-3'-FLUORO-4'-CYANOBENZENE

4-N-ALKYLBENZOYL-THIO-3'-FLUORO-4'-CYANOBENZENE

NEW MATERIAL:A compound shown by the formula I (R is 1-10C straight-chain alkyl). USE:A nematic liquid crystal material useful as an electrooptical display material. Especially useful as a nematic liquid crystal of thioester derivative. Showing a wide nematic temperature range, capable of carrying o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TORIYAMA KAZUHISA, TAKAKU HIROSHI
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC CHEMISTRY
PAINTS
POLISHES
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Beschreibung
Zusammenfassung:NEW MATERIAL:A compound shown by the formula I (R is 1-10C straight-chain alkyl). USE:A nematic liquid crystal material useful as an electrooptical display material. Especially useful as a nematic liquid crystal of thioester derivative. Showing a wide nematic temperature range, capable of carrying out low-voltage drive when it is applied to a field-effect cell. PREPARATION:An acyl halide shown by the formula II (X is Cl, Br, or I) is reacted with a compound shown by the formula III in an inert organic solvent such as diethyl ether, tetrahydrofuran, etc. in the presence of a tertiary amine such as preferably triethylamine, pyridine, etc. at room temperature - the reflux temperature of the reaction mixture, to give a compound shown by the formula I .