Title:
4-CYANO-4'-(TRANS 4"-(TRANS-4'''-ALKYLCYCLOHEXYL) CYCLOHEXYL)BIPHENYL
Document Type and Number:
Japanese Patent JPS5832856
Kind Code:
A
Abstract:
NEW MATERIAL:A compound shown by the formulaI(R is H or 1W10C alkyl).
EXAMPLE: 4-Cyano-4'-[trans-4"-(trans-4'''-propylcyclohexyl) cyclohexyl]biphenyl.
USE: Useful for preparing a nematic liquid crystal composition having low viscosity. Showing a liquid crystal phase in a wide temperature range, having a dielectric anisotropy value of about +7 and a viscosity of about 80cp (extrapolated value) at 20°C, stable to water, air, light etc.
PROCESS: A 4-[trans-4"-(trans-4'''-alkylcyclohexyl)cyclohexyl]biphenyl shown by the formula IV is halogenated with iodic acid to give a 4-iodo-4'-[trans-4"- (trans-4'''-alkylcyclohexyl)cyclohexyl]biphenyl shown by the formula V, which is cyanized with cuprous cyanide, to give a compound shown by the formulaI.
Inventors:
KOJIMA TETSUHIKO
TSUJI MASAKAZU
SUGIMORI SHIGERU
TSUJI MASAKAZU
SUGIMORI SHIGERU
Application Number:
JP12906981A
Publication Date:
February 25, 1983
Filing Date:
August 18, 1981
Export Citation:
Assignee:
CHISSO CORP
International Classes:
C09K19/30; C07C67/00; C07C253/00; C07C255/50; G02F1/13; G09F9/00; G09F9/35; (IPC1-7): C07C121/60; C09K3/34; G02F1/13; G09F9/00; G09F9/35
Attorney, Agent or Firm:
Yataro Sasai