JPS5398932A - Preparation of o-nitro-o'-hydroxyazobenzenes and 2-(2'-hydroxyphenyl)- 1,2,3-benzotriazoles - Google Patents
Preparation of o-nitro-o'-hydroxyazobenzenes and 2-(2'-hydroxyphenyl)- 1,2,3-benzotriazolesInfo
- Publication number
- JPS5398932A JPS5398932A JP1134077A JP1134077A JPS5398932A JP S5398932 A JPS5398932 A JP S5398932A JP 1134077 A JP1134077 A JP 1134077A JP 1134077 A JP1134077 A JP 1134077A JP S5398932 A JPS5398932 A JP S5398932A
- Authority
- JP
- Japan
- Prior art keywords
- hydroxyazobenzenes
- benzotriazoles
- hydroxyphenyl
- nitro
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To prepare the title azobenzenes by coupling, e.g. o-nitrobenzenediazonium salt with phenol cpds., and to prepare the title trizaoles by reduction of the azobenzenes.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1134077A JPS5398932A (en) | 1977-02-04 | 1977-02-04 | Preparation of o-nitro-o'-hydroxyazobenzenes and 2-(2'-hydroxyphenyl)- 1,2,3-benzotriazoles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1134077A JPS5398932A (en) | 1977-02-04 | 1977-02-04 | Preparation of o-nitro-o'-hydroxyazobenzenes and 2-(2'-hydroxyphenyl)- 1,2,3-benzotriazoles |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5398932A true JPS5398932A (en) | 1978-08-29 |
Family
ID=11775293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1134077A Pending JPS5398932A (en) | 1977-02-04 | 1977-02-04 | Preparation of o-nitro-o'-hydroxyazobenzenes and 2-(2'-hydroxyphenyl)- 1,2,3-benzotriazoles |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5398932A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4704452A (en) * | 1984-12-20 | 1987-11-03 | Ciba-Geigy Corporation | Azo dyes containing aralkyl-nitrophenyl diazo components |
WO2003048257A1 (en) * | 2001-12-05 | 2003-06-12 | Ciba Specialty Chemicals Holding Inc. | Organic solvent-free process for the preparation of 2-(2-nitrophenylazo)phenols |
-
1977
- 1977-02-04 JP JP1134077A patent/JPS5398932A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4704452A (en) * | 1984-12-20 | 1987-11-03 | Ciba-Geigy Corporation | Azo dyes containing aralkyl-nitrophenyl diazo components |
WO2003048257A1 (en) * | 2001-12-05 | 2003-06-12 | Ciba Specialty Chemicals Holding Inc. | Organic solvent-free process for the preparation of 2-(2-nitrophenylazo)phenols |
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