Highly efficient synthesis of carboacyclic nucleosides catalyzed by zinc oxide in 1-butyl-3-methylimidazolium bromide (ZnO/[bmim]Br)

نویسندگان

  • Abdolkarim Zare Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran.
  • Abolfath Parhami Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran.
  • Hamideh Kabgani Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran.
  • Marzieh Hatami Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran.
  • Mohammad Beikagha Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran.
  • Raheleh Salamipoor Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran.
  • Zahra Khedri Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran.
چکیده مقاله:

Michael addition of pyrimidine and purine nucleobases to substituted as well as unsubstituted α,β-unsaturated esters efficiently proceeds in the presence of catalytic amount of zinc oxide in ionic liquid 1-butyl-3-methylimidazolium bromide (ZnO/[bmim]Br) under microwave irradiation to afford carboacyclic nucleosides, as biologically important compounds, in good to excellent yields and in short reaction times.

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منابع مشابه

highly efficient synthesis of carboacyclic nucleosides catalyzed by zinc oxide in 1-butyl-3-methylimidazolium bromide (zno/[bmim]br)

michael addition of pyrimidine and purine nucleobases to substituted as well as unsubstituted α,β-unsaturated esters efficiently proceeds in the presence of catalytic amount of zinc oxide in ionic liquid 1-butyl-3-methylimidazolium bromide (zno/[bmim]br) under microwave irradiation to afford carboacyclic nucleosides, as biologically important compounds, in good to excellent yields and in short ...

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1-butyl-3-methylimidazolium bromide promoted selectively oxidation of sulfur compounds by nabro3

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NMR study for self-aggregation of 1-butyl-3-methylimidazolium bromide in aqueous solution.

Self-aggregation of 1-butyl-3-methylimidazolium bromide ([bmim]Br) in D(2)O has been investigated using NMR spectroscopy. The (1)H spin-lattice relaxation times (T(1)) of the [bmim](+) increased with the decrease of concentration in the range of 0.1-3.0 mol dm(-3) as expected, however, in contrast, the (1)H-T(1) decreased below 0.1 mol dm(-3). The estimated (13)C-activation energies indicated t...

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عنوان ژورنال

دوره 4  شماره 4

صفحات  295- 303

تاریخ انتشار 2014-12-01

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