GB1494824A - Process for the production of 2-aryl-2h-benzotriazoles - Google Patents

Process for the production of 2-aryl-2h-benzotriazoles

Info

Publication number
GB1494824A
GB1494824A GB1968676A GB1968676A GB1494824A GB 1494824 A GB1494824 A GB 1494824A GB 1968676 A GB1968676 A GB 1968676A GB 1968676 A GB1968676 A GB 1968676A GB 1494824 A GB1494824 A GB 1494824A
Authority
GB
United Kingdom
Prior art keywords
benzotriazoles
aryl
production
nitroazobenzene
cyclising
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.)
Expired
Application number
GB1968676A
Other languages
English (en)
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.)
Novartis AG
Original Assignee
Ciba Geigy AG
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 Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of GB1494824A publication Critical patent/GB1494824A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
    • C07D249/16—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms condensed with carbocyclic rings or ring systems
    • C07D249/18—Benzotriazoles
    • C07D249/20—Benzotriazoles with aryl radicals directly attached in position 2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB1968676A 1975-05-14 1976-05-13 Process for the production of 2-aryl-2h-benzotriazoles Expired GB1494824A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57738475A 1975-05-14 1975-05-14

Publications (1)

Publication Number Publication Date
GB1494824A true GB1494824A (en) 1977-12-14

Family

ID=24308475

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1968676A Expired GB1494824A (en) 1975-05-14 1976-05-13 Process for the production of 2-aryl-2h-benzotriazoles

Country Status (9)

Country Link
JP (1) JPS6036430B2 (nl)
BE (1) BE841769A (nl)
BR (1) BR7603024A (nl)
CH (1) CH615166A5 (nl)
DE (1) DE2620897A1 (nl)
ES (1) ES447874A1 (nl)
FR (1) FR2311011A1 (nl)
GB (1) GB1494824A (nl)
NL (1) NL7605203A (nl)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0363318A1 (de) * 1988-09-28 1990-04-11 Ciba-Geigy Ag Verfahren zur Herstellung von Benztriazolderivaten
US5276161A (en) * 1989-09-20 1994-01-04 Ciba-Geigy Corporation Process for the preparation of benzotriazoles
CN112538055A (zh) * 2020-12-11 2021-03-23 西安凯立新材料股份有限公司 一种苯并三唑类紫外线吸收剂的制备方法

Families Citing this family (3)

* 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
JPH02202880A (ja) * 1989-01-31 1990-08-10 Kemipuro Kasei Kk ２―フェニルベンゾトリアゾール類の製造法
JPH02202879A (ja) * 1989-01-31 1990-08-10 Kemipuro Kasei Kk ２―フェニルベンゾトリアゾール類の製造法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH529815A (de) * 1970-06-19 1972-10-31 Ciba Geigy Ag Verwendung von 2-(2'Hydroxyphenyl)-benztriazolverbindungen als Lichtschutzmittel
US3978074A (en) * 1973-11-21 1976-08-31 Uniroyal Inc. Method of making hydroxyarylbenzotriazoles and their N-oxides

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0363318A1 (de) * 1988-09-28 1990-04-11 Ciba-Geigy Ag Verfahren zur Herstellung von Benztriazolderivaten
US4999433A (en) * 1988-09-28 1991-03-12 Ciba-Geigy Corporation Process for the preparation of benzotriazole derivatives
US5276161A (en) * 1989-09-20 1994-01-04 Ciba-Geigy Corporation Process for the preparation of benzotriazoles
CN112538055A (zh) * 2020-12-11 2021-03-23 西安凯立新材料股份有限公司 一种苯并三唑类紫外线吸收剂的制备方法

Also Published As

Publication number Publication date
FR2311011A1 (fr) 1976-12-10
JPS51138677A (en) 1976-11-30
ES447874A1 (es) 1977-07-16
CH615166A5 (en) 1980-01-15
BR7603024A (pt) 1977-05-31
DE2620897A1 (de) 1976-11-25
FR2311011B1 (nl) 1978-05-19
BE841769A (fr) 1976-11-16
JPS6036430B2 (ja) 1985-08-20
NL7605203A (nl) 1976-11-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee