JPS52113973A - Synthesis of benzotriazole derivatives - Google Patents
Synthesis of benzotriazole derivativesInfo
- 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
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
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)
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 |
-
1976
- 1976-03-19 JP JP2926076A patent/JPS52113973A/en active Pending
Cited By (5)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS52113974A (en) | Synthesis of benzotriazole derivatives | |
JPS52113973A (en) | Synthesis of benzotriazole derivatives | |
JPS532444A (en) | Preparation of hydroxycinnamaldehyde derivatives | |
JPS52285A (en) | Preparation of n1 *22tetrahydrofuryl**55fluorouracil | |
JPS52125108A (en) | Synthesis of 1,1,1-trimethoxyethane | |
JPS52106860A (en) | Synthesis of 2-oxy substituted tetrahydrofurans | |
JPS53135926A (en) | Synthesis of 1,3,6-tricyanohexane | |
JPS51113882A (en) | Method for preparing 1-(alpha -alkoxyalkyl)-uracil derivatives | |
JPS52100425A (en) | Preparation of thioether derivatives | |
JPS5231059A (en) | Preparation of oxybenzoylbenzoic acids | |
JPS532476A (en) | Synthesis of 4-substituted-dithio-2-azetidinone derivatives | |
JPS5278886A (en) | Synthesis of 5-fluorouracil derivatives | |
JPS5353684A (en) | Preparation of dibenzazepin derivatives | |
JPS5223067A (en) | Novel synthesis of 2-aminomethyl-1- ethylpyrrolidine | |
JPS549250A (en) | Synthesis of n-mono-substituted aminobenzophenone derivatives | |
JPS52113990A (en) | Synthesis of desacetoxycephalosporanic acids | |
JPS5297909A (en) | Preparation of perfluoroacrylic acid derivatives | |
JPS5283391A (en) | Synthesis of 3-substituted methyl-cephem compounds | |
JPS5414953A (en) | 1-aminocarbonyltricyclo(4,3,1,12,5)undecane | |
JPS5283343A (en) | Synthesis of 3-chloro-4-allyloxyphenylpyrovic acid | |
JPS5285147A (en) | Preparation of 2, 6-dioxy-ininocychlohexanone | |
JPS5283385A (en) | Synthesis of n1-(2,-furanidyl)-5-flurouracil | |
JPS52139007A (en) | Synthesis of 3-methylbutanol-1 | |
JPS5377054A (en) | Preparation of 2-hydroxytetrahydrofuran | |
JPS5356693A (en) | Novel compound s.e.n-215 |