An expeditious copper-catalyzed access to 3-aminoquinolinones, 3-aminocoumarins and anilines using sodium azide

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Abstract

An efficient copper-catalyzedin in situ C-(sp2)-NH2 bond formation to provide a range of 3-aminoquinolin-2(1H)-ones and 3-aminocoumarins from 3-bromoquinolinones and 3-bromocoumarins, respectively, has been achieved. The reaction conditions involve the use of copper powder as the catalyst, eco-friendly ethanol as the solvent in the pres ence of pipecolinic acid as the ligand and ascorbic acid as the additive. The efficiency of this practical method was demonstrated in the synthesis of various anilines.

Original languageEnglish
Pages (from-to)1677-1687
Number of pages11
JournalAdvanced Synthesis and Catalysis
Volume352
Issue number10
DOIs
Publication statusPublished - 5 Jul 2010
Externally publishedYes

Keywords

  • Aminoheterocycles
  • Anilines
  • C-N bond formation
  • Copper catalysis
  • Sodium azide

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