KR830002754A - Method for producing 5-(2-hydroxy-3-thiopropoxy)chromone-2-carboxylic acids - Google Patents

Method for producing 5-(2-hydroxy-3-thiopropoxy)chromone-2-carboxylic acids

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Publication number
KR830002754A
KR830002754A KR1019800001387A KR800001387A KR830002754A KR 830002754 A KR830002754 A KR 830002754A KR 1019800001387 A KR1019800001387 A KR 1019800001387A KR 800001387 A KR800001387 A KR 800001387A KR 830002754 A KR830002754 A KR 830002754A
Authority
KR
South Korea
Prior art keywords
carbon atoms
hydroxy
represented
general formula
thiopropoxy
Prior art date
Application number
KR1019800001387A
Other languages
Korean (ko)
Other versions
KR830002565B1 (en
Inventor
페드라졸리 안드레아
보베리 세르지오
Original Assignee
쟝 꼬마트
씨. 엠 인더스트리스
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 쟝 꼬마트, 씨. 엠 인더스트리스 filed Critical 쟝 꼬마트
Priority to KR1019800001387A priority Critical patent/KR830002565B1/en
Publication of KR830002754A publication Critical patent/KR830002754A/en
Application granted granted Critical
Publication of KR830002565B1 publication Critical patent/KR830002565B1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/22—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

내용 없음No content

Description

5-(2-히드록시-3-티오프로폭시)크로몬-2-카르복실산류의 제조방법Method for producing 5-(2-hydroxy-3-thiopropoxy)chromone-2-carboxylic acids

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this content is publicly disclosed, the full text is not included.

Claims (3)

일반식(COOR0)로 표시되는 저급 디알킬옥살레이트(R0는 탄소원자 1내지 4개를 갖는 알킬기를 나타냄)와 하기 일반식(Ⅳ)로 표시되는 2-히드록시 6-(2-히드록시-3-티오프로폭시)아세토페논과를 알카리 축합제의 존재하에 반응시키고, 얻어지는 반응 혼합물을 산으로 처리하여 생성되는 하기 일반식(Ⅴ)로 표시되는 5-(2-히드록시-3-티오프로폭시)크로몬-2-카르복실산 에스테르를 필요에 따라서, 가수분해를 행하여 얻어지는 산을 이의 알카리 또는 알카리 토금속 염류로 전환시킴을 특징으로하여 하기 일반식(Ⅰ)로 표시되는 5-(2-히드록시-3-티오프로폭시)크로몬-2-카르복실산류, 이들의 알카리 또는 알카리토금속 염류 및 탄소원자 1내지 4개를 갖는 이들의 알킬 에스테르의 제조방법.Lower dialkyl oxalate represented by the general formula (COOR 0 ) (R 0 represents an alkyl group having 1 to 4 carbon atoms) and 2-hydroxy 6-(2-hydroxy represented by the following general formula (IV) 5-(2-hydroxy-3-) represented by the following general formula (V) produced by reacting hydroxy-3-thiopropoxy)acetophenone with an alkali condensing agent and treating the resulting reaction mixture with an acid. Thiopropoxy) 5-mon represented by the following general formula (I), characterized in that the acid obtained by hydrolysis of the chromone-2-carboxylic acid ester is converted into an alkali or alkaline earth metal salt thereof. 2-hydroxy-3-thiopropoxy)chromone-2-carboxylic acids, their alkali or alkaline earth metal salts, and their alkyl esters having 1 to 4 carbon atoms. (상기 식들중에서, R는 1내지 16개의 탄소 원자를 갖는 알킬기, 3내지 4개의 탄소원자를 갖는 알케닐기, 2내지 4개의 탄소원자를 갖는 히드록시알킬기, 3내지 8개의 탄소 원자를 갖는 알킬기 또는 4내지 9개의 탄소원자를 갖는 시클로 알킬 알킬기를 나타낸다)(Wherein, R is an alkyl group having 1 to 16 carbon atoms, an alkenyl group having 3 to 4 carbon atoms, a hydroxyalkyl group having 2 to 4 carbon atoms, an alkyl group having 3 to 8 carbon atoms, or 4 to 4 Represents a cycloalkyl alkyl group having 9 carbon atoms) 6-(2-히드록시-3-티오프로폭시)아세토페논과 일반식(COOR0)로 표시되는 디알킬옥살레이트(R0는 탄소원자 1내지 4개를 갖는 알킬기를 나타냄)와의 반응을 알코올 R0OH와 사용하는 옥살레이트에 상응하는 알코올라아트 R0ONa와의 공존하에 반응을 수행합을 특징으로 하는 특허 청구의 범위 제1항 기재의 방법.Alcohol reaction of 6-(2-hydroxy-3-thiopropoxy)acetophenone with dialkyloxalate represented by the general formula (COOR 0 ) (R 0 represents an alkyl group having 1 to 4 carbon atoms) The method according to claim 1, characterized in that the reaction is carried out in the presence of R 0 OH and alcohol laat R 0 ONa corresponding to the oxalate used. 일반식(COOR0)로 표시되는 디알킬옥살레이트가 디에틸옥살레이트 임을 특징으로 하는 특허청구의 범위 제1항 및 제2항 기재의 방법.The method of claim 1 and claim 2 characterized in that the dialkyloxalate represented by the general formula (COOR 0 ) is diethyloxalate. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: Disclosure is based on the original application.
KR1019800001387A 1980-04-02 1980-04-02 Process for preparing 5-(2-hydroxy-3-thiopropoxy)chromone-2-carboxylicacids KR830002565B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019800001387A KR830002565B1 (en) 1980-04-02 1980-04-02 Process for preparing 5-(2-hydroxy-3-thiopropoxy)chromone-2-carboxylicacids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019800001387A KR830002565B1 (en) 1980-04-02 1980-04-02 Process for preparing 5-(2-hydroxy-3-thiopropoxy)chromone-2-carboxylicacids

Publications (2)

Publication Number Publication Date
KR830002754A true KR830002754A (en) 1983-05-30
KR830002565B1 KR830002565B1 (en) 1983-11-14

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Application Number Title Priority Date Filing Date
KR1019800001387A KR830002565B1 (en) 1980-04-02 1980-04-02 Process for preparing 5-(2-hydroxy-3-thiopropoxy)chromone-2-carboxylicacids

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Also Published As

Publication number Publication date
KR830002565B1 (en) 1983-11-14

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