KR910011794A - Method for preparing pyridine derivative - Google Patents

Method for preparing pyridine derivative Download PDF

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Publication number
KR910011794A
KR910011794A KR1019890018232A KR890018232A KR910011794A KR 910011794 A KR910011794 A KR 910011794A KR 1019890018232 A KR1019890018232 A KR 1019890018232A KR 890018232 A KR890018232 A KR 890018232A KR 910011794 A KR910011794 A KR 910011794A
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KR
South Korea
Prior art keywords
pyridine derivative
preparing pyridine
formula
trimethyl
alkali
Prior art date
Application number
KR1019890018232A
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Korean (ko)
Other versions
KR910006983B1 (en
Inventor
정유섭
김동익
Original Assignee
이성훈
주식회사 중외제약
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Priority to KR1019890018232A priority Critical patent/KR910006983B1/en
Publication of KR910011794A publication Critical patent/KR910011794A/en
Application granted granted Critical
Publication of KR910006983B1 publication Critical patent/KR910006983B1/en

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/89—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members with hetero atoms directly attached to the ring nitrogen atom

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyridine Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

내용 없음No content

Description

피리딘 유도체의 제조방법Method for preparing pyridine derivative

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (2)

구조식(Ⅲ)의 2,3,5-트리메틸피리딘-N-옥사이드를 클로로화제와 반응시켜 구조식(Ⅴ)의 2,3,5-트리메틸-4-클로로피리딘을 제조함을 특징으로 하여, 이를 산화 및 메탄올 중에서 알카리와 반응시켜 구조식(I)의 2,3,5-트리메틸-4-메톡시피리딘-N-옥사이드를 제조하는 방법.The 2,3,5-trimethylpyridine-N-oxide of formula (III) is reacted with a chloroating agent to prepare 2,3,5-trimethyl-4-chloropyridine of formula (V), which is oxidized. And reacting with alkali in methanol to produce 2,3,5-trimethyl-4-methoxypyridine-N-oxide of formula (I). 제1항에 있어서, 산화제는 H2O2이고 클로로화제는 POCl3이며 알카리는 NaOH, KOH임을 특징으로 하는 방법.The method of claim 1 wherein the oxidizing agent is H 2 O 2 , the chloroating agent is POCl 3 and the alkali is NaOH, KOH. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890018232A 1989-12-09 1989-12-09 Process for the preparation of pyridine derivatives KR910006983B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890018232A KR910006983B1 (en) 1989-12-09 1989-12-09 Process for the preparation of pyridine derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890018232A KR910006983B1 (en) 1989-12-09 1989-12-09 Process for the preparation of pyridine derivatives

Publications (2)

Publication Number Publication Date
KR910011794A true KR910011794A (en) 1991-08-07
KR910006983B1 KR910006983B1 (en) 1991-09-14

Family

ID=19292712

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890018232A KR910006983B1 (en) 1989-12-09 1989-12-09 Process for the preparation of pyridine derivatives

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KR (1) KR910006983B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111978246A (en) * 2020-09-26 2020-11-24 安徽金禾实业股份有限公司 Purification synthesis method of 2-methyl-3-methoxy-4-chloropyridine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1018295C2 (en) * 2001-06-15 2002-12-17 Dsm Nv Process for the preparation of 4-chloro-pyridine-n-oxides.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111978246A (en) * 2020-09-26 2020-11-24 安徽金禾实业股份有限公司 Purification synthesis method of 2-methyl-3-methoxy-4-chloropyridine

Also Published As

Publication number Publication date
KR910006983B1 (en) 1991-09-14

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