• 제목/요약/키워드: phenyl styryl ketones

검색결과 3건 처리시간 0.017초

페닐 스티릴 케톤 수지의 합성과 이들의 수용액상의 납(II)과 구리(II) 이온의 흡착에의 응용 (Syntheses of Phenyl Styryl Ketone Resins and Their Applications to the Uptake of Lead(II) and Copper(II) Ions in Aqueous Solutions)

  • Akhtar Tashfeen;Paracha Rizwan N.;Hameed Shahid;Rama Nasim H.;Riaz Masud
    • 폴리머
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    • 제31권2호
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    • pp.93-97
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    • 2007
  • Phenyl styryl ketone ligands 1-5 containing different functional groups were synthesized and attached to the aminated poly (styrene-divinvlbenzene) copolymer through diazotization. The coupling of the ligand with polymer was confirmed by FT-IR. The variation of the uptakes of Pb (II) or Cu (II) ions loaded in the prepared polymers (6-10) was examined at different pH values. An increase of metal uptake in the polymers was observed with the increase in pH value in aqueous solution.

다양한 치환기가 붙은 Styryl 4-Methoxy-1-Naphthyl Ketone의 합성과 치환기 효과에 관한 연구 (Synthesis and Substituent Effects in Substituted Styryl 4-Methoxy-1-Naphthyl Ketones)

  • Thirunarayanan, G.;Ananthakrishna Nadar, P.
    • 대한화학회지
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    • 제50권3호
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    • pp.183-189
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    • 2006
  • 초음파를 이용한 응축 반응을 이용하여 다양한 치환기가 붙은 4-methoxy-1-naphthyl ketone화합물들을 90% 이상의 높은 수율로 합성하였으며, 생성된 화합물물들을 미세 분석법, IR, 1H, 13C NMR 분석법 등을 이용하여 확인하였다. IR 스펙트럼에서 s-cis와 s-trans C=O stretching 모드를 확인하였으며, NMR 데이터로부터 에틸렌의 탄소와 수소에 대한 chemical shift를 확인하였다. 이러한 분광데이터를 이용하여 여러 분자들에 대한 Hammet 치환기 상수 값 들을 얻을 수 있었으며, 이들로부터 가용매 분해반응에 미치는 치환기 효과를 해석할 수 있었다.

Solvent-Free Synthesis of Some1-Acetyl Pyrazoles

  • Thirunarayanan, Ganesamoorthy;Sekar, Krishnamoorthy Guna
    • 대한화학회지
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    • 제57권5호
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    • pp.599-605
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    • 2013
  • Some N-acetyl pyrazoles including 1-(3-(3,4-dichlorophenyl)-5-(substituted phenyl)-4,5-dihydro-$^1H$-pyrazole- 1-yl) ethanones have been synthesised by solvent free cyclization cum acetylation of chalcones like substituted styryl 3,4- dichlorophenyl ketones using hydrazine hydrate and acetic anhydride in presence of catalytic amount of fly-ash: $H_2SO_4$ catalyst. The yield of these N-acetyl pyrazole derivatives are more than 75%. The synthesised N-acetyl pyrazoline derivatives were characterized by their physical constants and spectral data.