Bulletin of the Korean Chemical Society

  • 제34권6호
  • /
  • Pages.1741-1744
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  • 2013
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  • 0253-2964(pISSN)
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  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Efficient and Regioselective Ring-Opening of Epoxides with Alcohols and Sodium Azide by using Catalytic Amounts of GaCl3/Polyvinylpyrrolidone

  • 투고 : 2013.03.04
  • 심사 : 2013.03.16
  • 발행 : 2013.06.20
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초록

A new polymeric catalyst was prepared by supporting $GaCl_3$ on cross-linked polyvinylpyrrolidone ($GaCl_3$/PVP). This catalyst was employed for efficient and regioselective ring-opening reaction of epoxides by various alcohols under solvent-free conditions at room temperature. In our procedure, this heterogeneous catalyst was used at neutral and mild reaction conditions to afford high yields of ${\beta}$-alkoxy alcohols. Also, regioselective conversion of epoxides to ${\beta}$-azidohydrines was accomplished by sodium azide in MeOH in the presence of $GaCl_3$/PVP at room temperature. $GaCl_3$/PVP is a non-hygroscopic and recoverable catalyst and is easily separated from reaction mixture by a simple filtration and re-used repeatedly. Also, this catalyst has good handling and can be stored for long time without any reducing of its reactivity.

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피인용 문헌

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  6. Synthesis of polymer-supported Fe3O4 nanoparticles and their application as a novel route for the synthesis of imidazole derivatives vol.44, pp.11, 2013, https://doi.org/10.1007/s11164-018-3536-4