Title:
SYNTHESIS OF 4-AMINO-O-QUINONE DERIVATIVE AND 3-AMINO-6-ARYLAZOPHENOL DERIVATIVE
Document Type and Number:
Japanese Patent JP3151687
Kind Code:
B2
Abstract:
PURPOSE: To obtain a 3-amino-6-arylazophenol derivative in high yield by synthesizing a 4-amino-o-quinone derivative from catechol and an amine compound in high yield in the presence of an acid and oxidizing agent followed by condensation of this derivative with an arylhydrazine compound.
CONSTITUTION: The objective 4-amino-o-quinone derivative can be synthesized by reaction of catechol with an amine compound in the presence of an acid and oxidizing agent. The other objective 3-amino-6-arylazophenol derivative can be obtained by condensation of the above derivative with an arylhydrazine compound.
Inventors:
Tatsuo Tanaka
Norio Miura
Katsunori Kato
Noritaka Nakayama
Yamato Komamura
Norio Miura
Katsunori Kato
Noritaka Nakayama
Yamato Komamura
Application Number:
JP17435392A
Publication Date:
April 03, 2001
Filing Date:
July 01, 1992
Export Citation:
Assignee:
Konica Corporation
International Classes:
C07D213/76; C07C221/00; C07C225/28; C09B29/09; C09B57/00; (IPC1-7): C07C225/28; C07C221/00; C07D213/76
Other References:
Ｔｅｔｒａｈｅｄｒｏｎ，１９９０，Ｖｏｌ．４６，Ｎｏ．２，ｐａｇｅｓ ６６１−６７０