4-(TRANS-4'-(TRANS-4"-ALKYLCYCLOHEXYL)CYCLOHEXYL)PHENYL 4-CYANOBENZOATE

Title:

4-(TRANS-4'-(TRANS-4"-ALKYLCYCLOHEXYL)CYCLOHEXYL)PHENYL 4-CYANOBENZOATE

Document Type and Number:

Japanese Patent JPS597149

Kind Code:

A

Abstract:

NEW MATERIAL:The compound of formula (R is H or 1W10C alkyl).

EXAMPLE: 4-[ trans-4'-( trans-4"-propylcyclohexyl )-cyclohexyl ]phenyl 4-cyanobenzoate.

USE: A liquid crystal composition exhibiting liquid crystal phase even at a high temperature, having positive dielectric anisotropy, and stable to moisture, light, heat, air, etc.

PROCESS: The compound of formula can be prepared by (1) reacting 4-bromoanisole with metallic magnesium, (2) reacting the product with 4-(trans-4'-alkylcyclohexyl)cyclohexanone, (3) dehydrating by using potassium bisulfate as a catalyst, (4), reducing and demethylating the dehydration product, and (5) reacting with 4-cyanobenzoyl chloride.

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Inventors:

SUGIMORI SHIGERU
KOJIMA TETSUHIKO

Application Number:

JP11740982A

Publication Date:

January 14, 1984

Filing Date:

July 06, 1982

Export Citation:

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Assignee:

CHISSO CORP

International Classes:

C09K19/30; C07C67/00; C07C253/00; C07C255/57; (IPC1-7): C07C121/52; C09K3/34

Attorney, Agent or Firm:

Yataro Sasai

Next Patent: MANUFACTURE OF CYAN BENZOIC ACID ESTER