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Keywords:

  • C[BOND]H activation;
  • heterocycles;
  • ionic liquids;
  • nanoparticles;
  • palladium

Abstract

The palladium-catalyzed CH activation and arylation of N-methylpyrrole and N-phenylpyrrole allowed a convenient synthesis of diarylpyrroles. The reactions were performed by using tetrabutylammonium acetate as an ionic solvent, which allowed for the application of a ligand-free catalytic system by using simple palladium salts or polyvinylpyrrolidone-stabilized palladium nanoparticles as the catalyst.