• 제목/요약/키워드: 1,3-Diones

검색결과 32건 처리시간 0.018초

Synthesis and Antifungal Activity of Naphthalene-1,4-diones Modified at Positions 2, 3, and 5

  • Ryu, Chung-Kyu;Chae, Mi-Jin
    • Archives of Pharmacal Research
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    • 제28권7호
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    • pp.750-755
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    • 2005
  • A series of 2-arylamino-5-hydroxy-naphthalene-1,4-diones, 3-arylamino-5-methoxy-naphthalene-1,4-diones, and 2-arylamino-3chloro-5-hydroxy-naphthalene-1,4-diones were synthesized and tested for in vitro antifungal activity against the species Candida and Aspergillus niger. Among those tested, 3-arylamino-5-methoxy-naphthalene-1,4-diones exhibited potent antifungal activity. In general, the 3-arylamino-5-methoxy-naphthalene-1,4-diones showed more potent antifungal activity than the 2-arylamino-5-hydroxy-naphthalene-1,4-diones and the 2-arylamino-3-chloro-5-hydroxy-naphthalene-1,4-diones.

Synthesis of Dibenzoylmethanes as Intermediates for Flavone Synthesis by a Modified Baker-Venkataraman Rearrangement

  • Song, Gyu-Yong;Ahn, Byung-Zun
    • Archives of Pharmacal Research
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    • 제17권6호
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    • pp.434-437
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    • 1994
  • 1-Polyoxyphenyl-3-(2, 6-dioxyphenyl)propane-1, 3-diones have been synthesized as intermediates for flavone synthesis by condensation of 2-(2, 6-dioxybenzoyloxy)polyoxyacetophenone in the presence of phae transfer catalyst. The average yields of 1-polyoxyphenyl-3-phenylpropane-1, 3-diones, 1-polyoxyphenyl-3(2-benzyloxyphenyl)propane-1, 3-diones and 1-polyoxy-3-(2, 6-dibenzyloxyphenyl)propane-1, 3-dions were 79%, 74% and 71% respectively. The bulkiness of the benzyloxy groups or methyoxy gorups exerted steric hindrance and reduced the yield. Nevertheless, the yield were higher than the previously reported ones.

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담수조건에서 벼에 선택적인 5-(2-alkyl-2-methylindanyl)cyclohexane-1,3-diones 유도체의 합성과 제초활성 (Synthesis and Herbicidal Activity of Cyclohexane-1,3-diones : Rice Selective 5-(2-alkyl-2-methylindanyl) cyclohexane-1,3-dione herbicides under paddy submerged conditions)

  • 김경만;이병회;유응걸
    • 농약과학회지
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    • 제4권3호
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    • pp.89-92
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    • 2000
  • 제초제 후보물질로서 5-(2-metllyl-2-alkylindanyl)cyclohexane-1,3-diones 유도체를 합성하여 제초활성을 온실 조건에서 평가하였다. 담수 조건에서 이 화합물들은 3 엽기의 이앙벼에 대해 안전하면서 논피에 대해 높은 제초활성을 보였다.

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새로운 Tetrazole유도체의 합성과 항균활성 (Synthesis and Antibacterial Activity of New Tetrazole Derivatives)

  • Mulwad, V.V.;Pawar, Rupesh B;Chaskar, Atul C
    • 대한화학회지
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    • 제52권3호
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    • pp.249-256
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    • 2008
  • 3-Acetyl/Formyl 4-hydroxy-2H(1)-benzopyran-2-one를 malonitrile와 ethyl cyanoacetate로 처리하여 각각 1,1-dicyano-2-[4/-hydroxy-2/H(1)-benzopyran-2/-one-3/-yl] ethene/propene 2a-h와 ethyl-2-cyano-3-[4/-hydroxy-2/H (1)-benzopyran-2/-one-3/-yl] propenoate/butenoate 3a-h를 얻었다. NaN3와 2a-h의 1.3 dipolar 반응에서 4a-h인 tetrazole유도체를 얻었다. 3a-h는 PPA를 이용한 고리화 반응으로 3-cyano-2H,5H-pyrano [3, 2-c] benzopyran-2,5-diones 5a-h를 얻었다. 5a-h는 NaN3와1.3 dipolar 반응으로 -(1/H-tetrazol-5/-yl)-2H,5H-pyrano[3, 2-c] benzopyran-2,5-diones 6a-h얻었다. 화합물의 구조는 스펙트럼과 자료 분석을 기초로 입증했다.모든 화합물은 항균 활성을 검사하였고 의미있는 항균성을 가짐을 밝혔다. 2h화합물과 4h 화합물은 50 킽/mL에서 활성을 보였다

PEG-Mediated Catalyst-Free Expeditious Synthesis of Functionalized Benzene/Biaryl and Fluoren-9-one Derivatives from Activated Acetylenes and 1,3-Diones

  • Piltan, Mohammad;Yavari, Issa;Moradi, Loghman;Zarei, Seyed Amir
    • 대한화학회지
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    • 제56권3호
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    • pp.316-321
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    • 2012
  • Poly(ethylene glycol) (PEG) has been used as a sustainable, non-volatile, and environmentally friendly reaction solvent for the synthesis of functionalized benzene/biaryl and fluoren-9-one derivatives from activated acetylenes and 1,3-diones at $100^{\circ}C$. No additional solvent and catalyst are required.

Montmorillonite KSF Clay as Novel and Recyclable Heterogeneous Catalyst for the Microwave Mediated Synthesis of Indan-1,3-Diones

  • Marvi, Omid;Giahi, Masoud
    • Bulletin of the Korean Chemical Society
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    • 제30권12호
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    • pp.2918-2920
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    • 2009
  • Various indan-1,3-dione derivatives were synthesized from the reaction of different phthalic anhydrides with diethylmalonate using montmorillonite KSF clay as a recyclable heterogeneous acidic catalyst and microwave irradiation in good yields and short reaction times.

2-알킬-2,3-다이하이드로-1H-2-아자사이클로펜타[b]안트라센-5,10-디온계 유도체 합성 및 세포독성 (Synthesis and In Vitro Cytotoxic Activities of 2-Alkyl-2,3-dihydro-1H-2-azacyclopenta[b]anthracene-5,10-diones)

  • 곽재환;정은경;오주훈;정재경;홍진태;이희순
    • 약학회지
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    • 제53권1호
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    • pp.41-44
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    • 2009
  • A series of 2-alkyl-2,3-dihydro-1H-2-azacyclopenta[b]anthracene-5,10-diones ($3a{\sim}h$) were synthesized and evaluated in vitro cytotoxicity against colon cancer cell lines (HCT116 and SW620) and nuroblastoma cell lines (SK-N-SH and SK-N-MC). Among them, compound 3f showed significant cytotoxic activity ($IC_{50}$ against SK-N-SH; $14.8{\mu}M$, $IC_{50}$ against SK-N-MC; $11.3{\mu}M$).

구조-활성 관계 (제 1 보). 3-Phenyl-5,5-dimethyloxazolidine-2,4-diones 와 그들의 Antifungal Activity 에 관한 형태 분석 (Structure-Activity Relationship (Ⅰ). Conformational Analysis of 3-Phenyl-5,5-dimethyloxazolidine-2,4-diones and their Antifungal Activities)

  • 박성식;여수동;정덕영
    • 대한화학회지
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    • 제34권5호
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    • pp.476-482
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    • 1990
  • 3-phenyl-5,5-dimethyloxazolidine-2,4-dione에 대한 형태 분석을 통하여 구조-활성 관계를 검토하였다. Antifungal Activity에 대한 구조적인 특징으로 활성기인 amide group(-NCO)와 벤젠 moiety가 존재하며, 강한 활성을 나타내는 유사체의 N원자와 para 치환기 간의 공간거리 N-X$_4$는 5.32∼5.37${\AA}$, 3,5-치환기 간의 거리 X$_3$-X$_5$는 5.59 ∼ 5.77 ${\AA}$을 나타내었다.

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분자내 고리화반응에 의한 -4,9-Dione 유도체 합성 (Synthesis of -4,9-Dione Derivatives via Intramolecular Cyclization)

  • 신상희;서명은
    • 약학회지
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    • 제35권3호
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    • pp.231-235
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    • 1991
  • Compounds of the structure of -4,9-dione are known to have an antibacterial activity against Gram-positive bacteria. New kinds of 2-amino-$\alpha$-cyano-$\alpha$-ethoxycarbonyl-niethyl)-1,4-naphthoquino ne was reacted with some alkylamines(methylamine, ethylamine, ethanolarnine, isopropylamine, cyclohexylamine, benzylamine) to yield 2-amino-3-ethoxycarbonyl-N-alkyl-4,9-diones.

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A Regiospecific One-Pot, Three Component Synthesis of 4-Aryl-6,8-dimethylpyrimido[4,5-c]pyridazine-5,7(6H,8H)-diones as New Potential Monoamine Oxidase Inhibitors

  • Khalafy, Jabbar;Rimaz, Mehdi;Panahi, Leila;Rabiei, Hossein
    • Bulletin of the Korean Chemical Society
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    • 제32권7호
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    • pp.2428-2432
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    • 2011
  • A series of new 4-aryl-6,8-dimethylpyrimido[4,5-c]pyridazine-5,7(6H,8H)-diones have been synthesized via three component reaction of 1,3-dimethylbarbituric acid with arylglyoxals in the presence of hydrazinium dihydrochloride in ethanol. All of these derivatives may act as potential monoamine oxidase inhibitors.