Title:
FLUOROAZOXYBENZENE DERIVATIVE
Document Type and Number:
Japanese Patent JPS56123959
Kind Code:
A
Abstract:
NEW MATERIAL:A compound of formulas II and III (R is 1W15C alkyl).
EXAMPLE: A 4-alkoxy-4'-fluoroazoxybenzene.
USE: A component for a liquid crystal stable to moisture, electricity, etc.
PROCESS: p-Fluoroaniline of formula V is reacted with NaNO2 in HCl to give a diazonium salt of formula VI, which is then coupled with phenol in the presence of NaOH-AcONa (Ac is acetyl) to afford 4-hydroxy-4'-fluoroazobenzene of formula VII. The resultant compound is then reacted with NaOH and RBr or an alkyl p- toluenesulfonate in an alcohol to give a 4-alkoxy-4'-fluoroazobenzene of formula IV, which is then reacted with H2O2 in the presence of Ac2O-AcOH to affored the compound of formulas II and III (as an isomeric mixture).
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Inventors:
SUGIMORI SHIGERU
Application Number:
JP2770880A
Publication Date:
September 29, 1981
Filing Date:
March 05, 1980
Export Citation:
Assignee:
CHISSO CORP
International Classes:
C09K19/26; C07C67/00; C07C241/00; C07C291/08; C09K19/44; C09K19/46; (IPC1-7): C07C105/00; C09K3/34
Domestic Patent References:
| JPS5333643A | 1978-03-29 |