Reusable ionic liquid-catalyzed oxidative coupling of azoles and benzylic compounds via sp(3) C-N bond formation under metal-free conditions

Org Biomol Chem. 2015 Jul 14;13(26):7154-8. doi: 10.1039/c5ob00781j. Epub 2015 Jun 10.

Abstract

The heterocyclic ionic liquid-catalyzed direct oxidative amination of benzylic sp(3) C-H bonds via intermolecular sp(3) C-N bond formation for the synthesis of N-alkylated azoles under metal-free conditions is reported for the first time. The catalyst 1-butylpyridinium iodide can be recycled and reused with similar efficacies for at least eight cycles.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Azoles / chemistry*
  • Benzene / chemistry*
  • Catalysis
  • Ionic Liquids / chemistry*
  • Oxidative Coupling*
  • Pyridinium Compounds / chemistry*

Substances

  • Azoles
  • Ionic Liquids
  • N-butyl-3-butylpyridinium
  • Pyridinium Compounds
  • Benzene