Synthesis of het(aryl) imidazole C-nucleoside analogues by CoFe2O4 NPs catalyzed muti-component coupling reaction

Carbohydr Res. 2019 May 15:477:39-50. doi: 10.1016/j.carres.2019.03.013. Epub 2019 Apr 3.

Abstract

A general synthesis of hetaryl and aryl C-4(5) linked imidazole C-nucleoside analogues has been developed by the reaction of sugar alkynes with het(aryl) iodides, KMnO4/TBAB oxidation and CoFe2O4 NPs catalyzed muti-component coupling of the corresponding diketones, NH4OAc and aromatic aldehydes in one-pot. The sugar alkynes include pyranosides and furanosides with acid sensitive protecting groups. The het(aryl) iodides comprise iodoaromatics, iodoheterocycles, and sterically hindered iodoheteroaromatics.

Keywords: Muti-component coupling reaction; Sugar alkyne; het(aryl) imidazole C-nucleoside analogue.

MeSH terms

  • Catalysis
  • Cobalt / chemistry*
  • Ferric Compounds / chemistry*
  • Imidazoles / chemical synthesis*
  • Imidazoles / chemistry
  • Molecular Structure
  • Nanoparticles / chemistry*
  • Nucleosides / chemical synthesis*
  • Nucleosides / chemistry

Substances

  • Ferric Compounds
  • Imidazoles
  • Nucleosides
  • cobalt ferrite
  • Cobalt
  • imidazole