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Patent Searching and Data


Title:
DIAZO ETHER AND PRODUCTION THEREOF
Document Type and Number:
Japanese Patent JPS63203658
Kind Code:
A
Abstract:

NEW MATERIAL:The compound of formula I (R1 is aryl or polycyclic aromatic aryl).

USE: A dye easily forming 4-phenylazo-1-naphthol and 2-phenylazo-1-naphthol which are red azo dyes. It generates aryl radical and naphthoxy radical in high yield and is useful in the field of synthetic chemistry.

PREPARATION: An α-azohydroperoxide of formula II (R2 and R3 are H, 1W4C alkyl, aryl or polycyclic aromatic aryl or R2 and R3 together form -(CH2)4W7-; R4 is aryl or polycyclic aromatic aryl) is dissolved in a solvent and a crystalline solid or liquid of α-azohydroperoxide containing solvent molecule is separated from the solution. The obtained solid or liquid is mixed with 1-naphthol and the solvent is removed from the mixture to obtain the objective compound of formula I.


Inventors:
TEZUKA TAKAHIRO
Application Number:
JP1987000036576
Publication Date:
August 23, 1988
Filing Date:
February 19, 1987
Export Citation:
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Assignee:
HITACHI CHEMICAL CO LTD
International Classes:
C07C291/00; (IPC1-7): C07C135/00