KR910011828A - Method for preparing chromone carboxylate - Google Patents

Method for preparing chromone carboxylate Download PDF

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Publication number
KR910011828A
KR910011828A KR1019890020204A KR890020204A KR910011828A KR 910011828 A KR910011828 A KR 910011828A KR 1019890020204 A KR1019890020204 A KR 1019890020204A KR 890020204 A KR890020204 A KR 890020204A KR 910011828 A KR910011828 A KR 910011828A
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KR
South Korea
Prior art keywords
hydrogen
general formula
carboxylate
chromone
carbon atoms
Prior art date
Application number
KR1019890020204A
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Korean (ko)
Other versions
KR920001768B1 (en
Inventor
김상호
안병구
박영환
박우신
Original Assignee
하기주
주식회사 코오롱
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Priority to KR1019890020204A priority Critical patent/KR920001768B1/en
Publication of KR910011828A publication Critical patent/KR910011828A/en
Application granted granted Critical
Publication of KR920001768B1 publication Critical patent/KR920001768B1/en

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    • 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
    • C07D311/24—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4 with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2

Abstract

내용 없음No content

Description

크로몬 카르복실레이트의 제조방법Method for preparing chromone carboxylate

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

Claims (2)

다음 일반식(Ⅰ)의 할로벤젠 또는 그 핵치환 유도체와 다음 일반식(Ⅱ)의 옥살로아세트산 또는 그의 염을 유기 용매하에서 20내지 80℃의 온도로 1차 반응시켜 다음 일반식(Ⅲ)의 중간체를 얻은 후, 이 중간체를 산촉매하에서 고리화반응시켜 되는 것임을 특징으로 하는 다음 일반식(Ⅳ)의 크로몬 카르복실레이트 화합물의 제조방법.Next, a halobenzene of the general formula (I) or a nuclear substituted derivative thereof and the oxaloacetic acid or its salt of the following general formula (II) are first reacted at a temperature of 20 to 80 ° C. in an organic solvent to A method for producing a chromone carboxylate compound of the following general formula (IV), wherein the intermediate is subjected to a cyclization reaction under an acid catalyst after obtaining the intermediate. 윗 식에서 X는 Cl,Br또는 F이고, R1과 R2는 수소이거나 탄소수가 1 내지 4의 알콕시 또는 알킬기이며, M은 수소 또는 나트륨이고, R1는 수소이거나 탄소수가 1내지 3의 알킬기이다.Wherein X is Cl, Br or F, R 1 and R 2 are hydrogen or an alkoxy or alkyl group having 1 to 4 carbon atoms, M is hydrogen or sodium, and R 1 is hydrogen or an alkyl group having 1 to 3 carbon atoms . 제1항에 있어서, 유기 용매는 클로로포롬, 벤젠, 디옥산 및 톨루엔인 것임을 특징으로 하는 크로몬 카르복실레이트의 제조방법.The method of claim 1, wherein the organic solvent is chloroform, benzene, dioxane and toluene. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890020204A 1989-12-29 1989-12-29 Process for preparing cromone carboxylate KR920001768B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890020204A KR920001768B1 (en) 1989-12-29 1989-12-29 Process for preparing cromone carboxylate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890020204A KR920001768B1 (en) 1989-12-29 1989-12-29 Process for preparing cromone carboxylate

Publications (2)

Publication Number Publication Date
KR910011828A true KR910011828A (en) 1991-08-07
KR920001768B1 KR920001768B1 (en) 1992-03-02

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ID=19294246

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890020204A KR920001768B1 (en) 1989-12-29 1989-12-29 Process for preparing cromone carboxylate

Country Status (1)

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KR (1) KR920001768B1 (en)

Also Published As

Publication number Publication date
KR920001768B1 (en) 1992-03-02

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