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-benzotriazoles

Info

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
Application number
JP1134077A
Other languages
Japanese (ja)
Inventor
Yoshio Yamazaki
Hitoshi Goto
Shiyun Fujiki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Showa Denko Materials Co Ltd
Original Assignee
Hitachi Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP1134077A priority Critical patent/JPS5398932A/en
Publication of JPS5398932A publication Critical patent/JPS5398932A/en
Pending legal-status Critical Current

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
JP1134077A 1977-02-04 1977-02-04 Preparation of o-nitro-o'-hydroxyazobenzenes and 2-(2'-hydroxyphenyl)- 1,2,3-benzotriazoles Pending JPS5398932A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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