KR850004750A - Method for preparing pyron derivative - Google Patents

Method for preparing pyron derivative Download PDF

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Publication number
KR850004750A
KR850004750A KR1019830005919A KR830005919A KR850004750A KR 850004750 A KR850004750 A KR 850004750A KR 1019830005919 A KR1019830005919 A KR 1019830005919A KR 830005919 A KR830005919 A KR 830005919A KR 850004750 A KR850004750 A KR 850004750A
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KR
South Korea
Prior art keywords
acid
preparing
formula
pyron
general formula
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Application number
KR1019830005919A
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Korean (ko)
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KR860000174B1 (en
Inventor
김완주
Original Assignee
임관
한국과학기술원
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Publication date
Application filed by 임관, 한국과학기술원 filed Critical 임관
Priority to KR1019830005919A priority Critical patent/KR860000174B1/en
Publication of KR850004750A publication Critical patent/KR850004750A/en
Application granted granted Critical
Publication of KR860000174B1 publication Critical patent/KR860000174B1/en

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
    • C07D309/34—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D309/36—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms
    • C07D309/38—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms one oxygen atom in position 2 or 4, e.g. pyrones

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyridine Compounds (AREA)

Abstract

내용 없음No content

Description

파이론 유도체의 제조방법Method for preparing pyron derivative

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

Claims (3)

일반식(Ⅱ)의 멜드룸산을 디케텐과 반응시켜 제조된 일반식(Ⅲ)으로 표시되는 이소프로필리덴(1-히드록시-3-옥소 부틸리덴) 말론 에스테르를 유기산과 유기용매 존재하에 반응시켜 일반식(Ⅰ)로 표시되는 파이론 유도체의 제조방법.Reaction of isopropylidene (1-hydroxy-3-oxo butylidene) malone ester represented by formula (III) prepared by reacting melumic acid of formula (II) with diketene in the presence of an organic acid and an organic solvent To produce a pyron derivative represented by the general formula (I). 일반식 (Ⅰ)에서의 R은 카르복실기 또는 수소를 말한다.R in general formula (I) means a carboxyl group or hydrogen. 제1항에 있어서, 유기산은 BF3·Et2O, 파리-폴루엔 설폰산 및 메탄설폰산 중에서 선택하는 제조방법.The method of claim 1, wherein the organic acid is selected from BF 3 · Et 2 O, fly-polyene sulfonic acid, and methanesulfonic acid. 제1항에 있어서, 유기용매는 톨루엔 및 크실렌 중에서 선택하는 제조 방법.The method of claim 1, wherein the organic solvent is selected from toluene and xylene. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019830005919A 1983-12-14 1983-12-14 Process for preparing pyrone derivatives KR860000174B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019830005919A KR860000174B1 (en) 1983-12-14 1983-12-14 Process for preparing pyrone derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019830005919A KR860000174B1 (en) 1983-12-14 1983-12-14 Process for preparing pyrone derivatives

Publications (2)

Publication Number Publication Date
KR850004750A true KR850004750A (en) 1985-07-27
KR860000174B1 KR860000174B1 (en) 1986-02-28

Family

ID=19230609

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019830005919A KR860000174B1 (en) 1983-12-14 1983-12-14 Process for preparing pyrone derivatives

Country Status (1)

Country Link
KR (1) KR860000174B1 (en)

Also Published As

Publication number Publication date
KR860000174B1 (en) 1986-02-28

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