• Title/Summary/Keyword: Propargyl alcohol

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Synthesis and $\beta$-lactamase inhibitory activity of 6-exomethylene penamsulfone derivatives- I (Synthesis of 1-substituted thioalkyl -1,2,3-triazole-4-carboxaldehyde)

  • Yim, Chul-Bu;Youm, Jeong-Rok;Im, Chae-Uk;Park, Hee-Suk;Oh, Jeong-Suk;Park, Kye-Hwan
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1996.04a
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    • pp.159-159
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    • 1996
  • 6-Substituted exomethylene 기를 갖는 penam계 화합물이 $\beta$-lactamase 억제제로서 강력한 활성을 보여주고 있어서, 6-exomethylene기 도입에 필요한 1-substituted thioalkyl-1,2,3-triazole-4-carboxaldehyde를 합성하였다. Haloalkanol에 NaN$_3$를 반응시켜서 합성한 azidoalkanol과 propargyl alcohol을 산화시킨 propargyl aldehyde를 반응시켜서 1-(2-hydroxyalkyl-1,2,3-triazole-4-carboxaldehyde을 얻었다. 이것을 trifluoromethanesulfonic anhydride와 triethylamine 존재 하에 mercapto 화합물과 반응시켜서 목적물을 합성하였다.

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Synthesis and Characterization of Stereospecific 1-Propargyl-2-(dimethoxymethyl)-1- cyclohexanols

  • Lin, Juwhan;Kim, Sang-Il;Lee, Seung-Yong;Kim, Yong-Hyun;Lee, Kee-Young;Oh, Chang-Young;Ham, Won-Hun
    • Archives of Pharmacal Research
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    • v.23 no.2
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    • pp.104-111
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    • 2000
  • Stereochemical isomers with hydroxy groups were synthesized by reacting 2-(dimethoxy-methyl)cyclohexanone with propargylmagnesium bromide. The stereo chemical structures were identified by NMR spectral interpretation and the geometry optimization. To assist the NMR interpretation, geometry optimization based on semi-empirical AM1 and PM3 methods was applied. Throughout this study, the structures of the two isomers were all determined and $^{1}H$ and $^{13}C$ NMR spectra were fully assigned. It was proven that the less polar isomer is an axial alcohol and the more polar one is an equatorial alcohol.

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The Fabrication and Characterization of the Photovoltaic Cells Composed of Polydiacetylene and Fullerene

  • Song Jeong-Ho;Kang Tae-Jo;Cho Young-Don;Lee Sun-Hyoung;Kim Jeong-Soo
    • Fibers and Polymers
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    • v.7 no.3
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    • pp.217-222
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    • 2006
  • Propargyl alcohol was coupled to 2,4-hexadiyne-1,6-diol (HDD) and crystallized in the process of ultraviolet irradiation-induced topochemical polymerization. The HDD polymer crystals were used as one component in the fabrication of organic photovoltaic cells, in combination with fullerene as the electron acceptor. The various structures of the produced photovoltaic cells included bilayer, trilayer, and bulk heterojunction structures. Their photovoltaic properties were analyzed in relation to crystal structure, electrochemical properties, and band structure of the HOD polydiacetylene polymers.

Synthesis of (E,E)-2,4-Dienols from (E)-$\beta$-Chloro-$\gamma$-hydroxy-vinylmercurials and Olefins by Palladium(Ⅱ) Salt

  • Kim, Jin-Il;Lee, Jong-Tae;Choi, Cheol-Kyu
    • Bulletin of the Korean Chemical Society
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    • v.7 no.3
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    • pp.235-237
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    • 1986
  • Reaction of $(E)-{\beta}-chloro-{\gamma}$-hydroxyvinylmercurials, prepared by mercuration of propargyl alcohol and 2-methyl-3-butyne-2-ol, with olefins in the presence of a catalytic amount of $Li_2PdCl_4$ and 2 equiv of cupric chloride in methanol at $50^{\circ}C$ gave the corresponding (E,E)-2,4-dienols in moderate yields. However, addition of 1 equiv of inorganic bases such as magnesium oxide to the reaction mixture brings a rapid and clean vinylation and gave high yields of the dienols at room temperature. In the case of hindered (E)-2-chloro-3-chloromercuri-2-buten-1,4-diol prepared from 2-butyne-1,4-diol, reaction with olefins gave the dienols only in low yields even in the presence of 2 equiv of magnesium oxide.

Synthesis and Electroantennogram (EAG) Responses of the Sex Phermones of the Diamond Back Moth (배추좀나방 성 페로몬의 합성과 EAG 감응반응 연구)

  • Gang, Seok Gu;Seol, Gwang Yeol;Jeon, Jong Gap;Go, Hyeon Gwan;Kim, Jung Jin
    • Journal of the Korean Chemical Society
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    • v.34 no.2
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    • pp.179-183
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    • 1990
  • New synthesis and electroanthennogram (EAG) responses of the pheromones of the diamond back moth Plutella xylostella L. are described. Lithium dianion of propargyl alcohol was alkylated with 1-bromononane to give 2-dodecyn-1-ol, which was converted to 11-dodecyn-1-ol by acetylene-zipper reaction. Dianion of 11-dodecyn-1-ol was alkylated with 1-bromobutane to provide 11-hexadecyn-1-ol, which was in turn reduced over Pd/BaSO4 to afford (Z)-11-hexadecen-1-ol (3). (Z)-11-Hexadecen-1-ol was oxidized and acetylated to (Z)-11-hexadecen-1-al (1) and (Z)-11-hexadecen-1-yl acetate (2), respectively. The electroantennogram (EAG) responses of the diamond back moth to the pheromone compouds thus synthesized were measured.

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