C-H amidation of 2-aryl azlactones under iridium(III) catalysis: access to chiral amino acids

Chem Commun (Camb). 2022 Dec 1;58(96):13365-13368. doi: 10.1039/d2cc05245h.

Abstract

In this study, we examine the site-selctive iridium(III)-catalyzed C-H amidation between 2-aryl azlactones and acyl azides. This transformation produces a range of ortho-amidated azlactones, which act as precursors for the synthesis of chiral amino acids via organocatalyzed ring-opening reactions. To test its effectiveness, the method developed is applied to the late-stage C-H amidation of complex drug molecules. The isolation of an iridacycle species supports a proposed reaction pathway.

MeSH terms

  • Amino Acids*
  • Azides / chemistry
  • Catalysis
  • Iridium* / chemistry
  • Molecular Structure

Substances

  • Iridium
  • Amino Acids
  • Azides