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KR880012569A - Method for preparing benzotriazole derivatives - Google Patents

Method for preparing benzotriazole derivatives Download PDF

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Publication number
KR880012569A
KR880012569A KR870003887A KR870003887A KR880012569A KR 880012569 A KR880012569 A KR 880012569A KR 870003887 A KR870003887 A KR 870003887A KR 870003887 A KR870003887 A KR 870003887A KR 880012569 A KR880012569 A KR 880012569A
Authority
KR
South Korea
Prior art keywords
carbon atoms
hydrogen
formula
lower alkyl
phenylalkyl group
Prior art date
Application number
KR870003887A
Other languages
Korean (ko)
Inventor
박경배
이인우
Original Assignee
이정오
한국과학기술원
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 이정오, 한국과학기술원 filed Critical 이정오
Priority to KR870003887A priority Critical patent/KR880012569A/en
Priority to JP62174982A priority patent/JPS63267766A/en
Priority to DE19873731860 priority patent/DE3731860A1/en
Publication of KR880012569A publication Critical patent/KR880012569A/en

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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

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

내용 없음No content

Description

벤조트리아졸 유도체의 제조방법Method for preparing benzotriazole derivatives

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (4)

일반식(Ⅰ)의 0-니트로아졸페놀 유도체를 환원제와 용매존재하에 환류반응시켜 일반식(Ⅱ)의 2-아릴-2H-벤조트리아졸 유도체 또는 일반식(Ⅲ)의 2-아릴-2H-벤조트리아졸의 N-옥시드 유도체를 선택적으로 제조하는 것을 특징으로 하는 벤조트리아졸 유도체의 제조방법.The 2-aryl-2H-benzotriazole derivative of formula (II) or 2-aryl-2H- of formula (III) was reacted by refluxing the 0-nitroazole phenol derivative of formula (I) in the presence of a reducing agent and a solvent. A method for producing a benzotriazole derivative, characterized by selectively preparing an N-oxide derivative of benzotriazole. 일반식(Ⅰ)에 있어서, R1이 수소이거나 또는 염소이고, R2는 수소이거나 탄소수가 1부터 5까지의 저급알킬이거나 또는 탄소수가 7부터 9까지의 페닐알킬기를 표하며, R3는 수소이거나 탄소수가 1부터 5까지의 저급알킬이거나 또는 탄소수가 7부터 9까지의 페닐알킬기를 표시한다.In formula (I), R 1 is hydrogen or chlorine, R 2 is hydrogen, lower alkyl having 1 to 5 carbon atoms or phenylalkyl group having 7 to 9 carbon atoms, and R 3 is hydrogen Or lower alkyl having 1 to 5 carbon atoms or phenylalkyl group having 7 to 9 carbon atoms. 일반식(Ⅱ)에 있어서, R1이 수소이거나 또는 염소이고, R2는 수소이거나 탄소수가 1부터 5까지의 저급알킬이거나 또는 탄소수가 7부터 9까지의 페닐알킬기를 표시하며, R3는 수소이거나 탄소수가 1부터 5까지의 저급알킬이거나 또는 탄소수가 7부터 9까지의 페닐알킬기를 표시한다.In formula (II), R 1 is hydrogen or chlorine, R 2 is hydrogen, lower alkyl having 1 to 5 carbon atoms or phenylalkyl group having 7 to 9 carbon atoms, R 3 is hydrogen Or lower alkyl having 1 to 5 carbon atoms or phenylalkyl group having 7 to 9 carbon atoms. 일반식(Ⅲ)에 있어서, R1이 수소이거나 또는 염소이고, R2는 수소이거나 탄소수가 1부터 5까지의 저급알킬이거나 또는 탄소수가 7부터 9까지의 페닐알킬기를 표시하며, R3는 수소이거나 탄소수가 1부터 5까지의 저급알킬이거나 또는 탄소수가 7부터 9까지의 페닐알킬기를 표시한다.In formula (III), R 1 is hydrogen or chlorine, R 2 is hydrogen, lower alkyl having 1 to 5 carbon atoms or phenylalkyl group having 7 to 9 carbon atoms, R 3 is hydrogen Or lower alkyl having 1 to 5 carbon atoms or phenylalkyl group having 7 to 9 carbon atoms. 제1항에 있어서, 환원제가 포름산나트륨과 아이티온산나트륨, 포름산나트륨과 아황삽수소나트륨 중에서 선택된 것임을 특징으로 하는 벤조트리아졸 유도체의 제조방법.The method for preparing a benzotriazole derivative according to claim 1, wherein the reducing agent is selected from sodium formate and sodium itionate, sodium formate and sodium sulfite. 제1항에 있어서, 용매가 물, N,N'-디메틸포름아미드, 톨루엔, 클로로벤젠중에서 선택된 단독 또는 혼합물인 것을 특징으로 하는 벤조트리아졸 유도체의 제조방법.The method for producing a benzotriazole derivative according to claim 1, wherein the solvent is a single or a mixture selected from water, N, N'-dimethylformamide, toluene and chlorobenzene. 제1항에 있어서, 일반식(Ⅲ)의 2-아릴-2H-벤조트리아졸-N옥시드를 제조하고자 할때에 2-안트라퀴논술폰산나트륨 단독 또는 1,4-나프토퀴논과 P-톨루엔순폰산나트륨 혼합물로 이루어진 상 전이촉매를 사용하는 것을 특징으로 하는 벤조트리아졸 유도체의 제조방법.2. Sodium 2-anthraquinone sulfonate alone or 1,4-naphthoquinone and P-toluene in order to prepare 2-aryl-2H-benzotriazole-Noxide of general formula (III) A process for producing a benzotriazole derivative, characterized by using a phase transfer catalyst consisting of a sodium phonate mixture. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR870003887A 1987-04-22 1987-04-22 Method for preparing benzotriazole derivatives KR880012569A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR870003887A KR880012569A (en) 1987-04-22 1987-04-22 Method for preparing benzotriazole derivatives
JP62174982A JPS63267766A (en) 1987-04-22 1987-07-15 Manufacture of 2-aryl-2h-benzotriazole or n-oxide of same and derivatives
DE19873731860 DE3731860A1 (en) 1987-04-22 1987-09-22 Process for the preparation of 2-aryl-2H-benzotriazoles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR870003887A KR880012569A (en) 1987-04-22 1987-04-22 Method for preparing benzotriazole derivatives

Publications (1)

Publication Number Publication Date
KR880012569A true KR880012569A (en) 1988-11-28

Family

ID=19260904

Family Applications (1)

Application Number Title Priority Date Filing Date
KR870003887A KR880012569A (en) 1987-04-22 1987-04-22 Method for preparing benzotriazole derivatives

Country Status (3)

Country Link
JP (1) JPS63267766A (en)
KR (1) KR880012569A (en)
DE (1) DE3731860A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02202879A (en) * 1989-01-31 1990-08-10 Kemipuro Kasei Kk Production of 2-phenylbenzotriazoles
US6566507B2 (en) 2000-08-03 2003-05-20 Ciba Specialty Chemicals Corporation Processes for the preparation of benzotriazole UV absorbers

Also Published As

Publication number Publication date
JPS63267766A (en) 1988-11-04
JPH0478633B2 (en) 1992-12-11
DE3731860A1 (en) 1988-11-10

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