JPS52113974A - Synthesis of benzotriazole derivatives - Google Patents

Synthesis of benzotriazole derivatives

Info

Publication number
JPS52113974A
JPS52113974A JP2926176A JP2926176A JPS52113974A JP S52113974 A JPS52113974 A JP S52113974A JP 2926176 A JP2926176 A JP 2926176A JP 2926176 A JP2926176 A JP 2926176A JP S52113974 A JPS52113974 A JP S52113974A
Authority
JP
Japan
Prior art keywords
synthesis
benzotriazole derivatives
derivatives
hydroxyclization
absorbors
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
JP2926176A
Other languages
Japanese (ja)
Inventor
Kazuo Nakajima
Takeshi Hiiro
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 JP2926176A priority Critical patent/JPS52113974A/en
Publication of JPS52113974A publication Critical patent/JPS52113974A/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 hydroxyclization of 2-nitro-2'-hydroxyazobenzene derivatives.
COPYRIGHT: (C)1977,JPO&Japio
JP2926176A 1976-03-19 1976-03-19 Synthesis of benzotriazole derivatives Pending JPS52113974A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2926176A JPS52113974A (en) 1976-03-19 1976-03-19 Synthesis of benzotriazole derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2926176A JPS52113974A (en) 1976-03-19 1976-03-19 Synthesis of benzotriazole derivatives

Publications (1)

Publication Number Publication Date
JPS52113974A true JPS52113974A (en) 1977-09-24

Family

ID=12271327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2926176A Pending JPS52113974A (en) 1976-03-19 1976-03-19 Synthesis of benzotriazole derivatives

Country Status (1)

Country Link
JP (1) JPS52113974A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6471862A (en) * 1987-09-11 1989-03-16 Chemipro Kasei Kaisha Ltd Production of 2-phenylbenzotriazole
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
JP2005292240A (en) * 2004-03-31 2005-10-20 Hoya Corp Ultraviolet absorber, plastic spectacle lens using the same, and its manufacturing method
JP2018528165A (en) * 2015-07-07 2018-09-27 スリーエム イノベイティブ プロパティズ カンパニー Substituted benzotriazole phenol
CN111057019A (en) * 2019-12-20 2020-04-24 吉林师范大学 Method for producing 2- (2 '-hydroxy-5' -methoxyphenyl) benzotriazole
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 (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6471862A (en) * 1987-09-11 1989-03-16 Chemipro Kasei Kaisha Ltd Production of 2-phenylbenzotriazole
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
JP2005292240A (en) * 2004-03-31 2005-10-20 Hoya Corp Ultraviolet absorber, plastic spectacle lens using the same, and its manufacturing method
JP2018528165A (en) * 2015-07-07 2018-09-27 スリーエム イノベイティブ プロパティズ カンパニー Substituted benzotriazole phenol
CN111057019A (en) * 2019-12-20 2020-04-24 吉林师范大学 Method for producing 2- (2 '-hydroxy-5' -methoxyphenyl) benzotriazole
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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