JPS52113973A - Synthesis of benzotriazole derivatives - Google Patents

Synthesis of benzotriazole derivatives

Info

Publication number
JPS52113973A
JPS52113973A JP2926076A JP2926076A JPS52113973A JP S52113973 A JPS52113973 A JP S52113973A JP 2926076 A JP2926076 A JP 2926076A JP 2926076 A JP2926076 A JP 2926076A JP S52113973 A JPS52113973 A JP S52113973A
Authority
JP
Japan
Prior art keywords
synthesis
benzotriazole derivatives
derivatives
absorbors
hydrocyclization
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
JP2926076A
Other languages
Japanese (ja)
Inventor
Takami Sato
Yoshio Fukuda
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.)
Kawaken Fine Chemicals Co Ltd
Original Assignee
Kawaken Fine Chemicals 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 Kawaken Fine Chemicals Co Ltd filed Critical Kawaken Fine Chemicals Co Ltd
Priority to JP2926076A priority Critical patent/JPS52113973A/en
Publication of JPS52113973A publication Critical patent/JPS52113973A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain title compounds in high yields, useful as UV-absorbors, antioxidants, anti-corrosives, etc., by catalytic hydrocyclization of 2-nitro-2'hydroxyazobenzene derivatives in the presence of a basic substance.
COPYRIGHT: (C)1977,JPO&Japio
JP2926076A 1976-03-19 1976-03-19 Synthesis of benzotriazole derivatives Pending JPS52113973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2926076A JPS52113973A (en) 1976-03-19 1976-03-19 Synthesis of benzotriazole derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2926076A JPS52113973A (en) 1976-03-19 1976-03-19 Synthesis of benzotriazole derivatives

Publications (1)

Publication Number Publication Date
JPS52113973A true JPS52113973A (en) 1977-09-24

Family

ID=12271297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2926076A Pending JPS52113973A (en) 1976-03-19 1976-03-19 Synthesis of benzotriazole derivatives

Country Status (1)

Country Link
JP (1) JPS52113973A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4999433A (en) * 1988-09-28 1991-03-12 Ciba-Geigy Corporation Process for the preparation of benzotriazole derivatives
US5187289A (en) * 1989-01-31 1993-02-16 Chemipro Kasei Kaisha, Ltd. Method of preparing 2-phenyl benzotriazoles
US5276161A (en) * 1989-09-20 1994-01-04 Ciba-Geigy Corporation Process for the preparation of benzotriazoles
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
CN112538055A (en) * 2020-12-11 2021-03-23 西安凯立新材料股份有限公司 Preparation method of benzotriazole ultraviolet absorbent

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4999433A (en) * 1988-09-28 1991-03-12 Ciba-Geigy Corporation Process for the preparation of benzotriazole derivatives
US5187289A (en) * 1989-01-31 1993-02-16 Chemipro Kasei Kaisha, Ltd. Method of preparing 2-phenyl benzotriazoles
US5276161A (en) * 1989-09-20 1994-01-04 Ciba-Geigy Corporation Process for the preparation of benzotriazoles
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
CN112538055A (en) * 2020-12-11 2021-03-23 西安凯立新材料股份有限公司 Preparation method of benzotriazole ultraviolet absorbent

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