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Keywords:

  • Aromatic substitution;
  • Substituent effects;
  • Synthetic methods;
  • ­Arenes;
  • Diazo compounds

Abstract

The intermolecular aromatic substitution of N,N-disubstituted anilines with diazo esters is achieved under mild conditions in the presence of a catalytic amount of copper(II) triflate (up to 89 % yield). The scope and limitations regarding substrates, diazo esters, and ligands in this reaction are described.