Enantioselective direct α-amination of aldehydes via a photoredox mechanism: a strategy for asymmetric amine fragment coupling

J Am Chem Soc. 2013 Aug 7;135(31):11521-4. doi: 10.1021/ja406181e. Epub 2013 Jul 26.

Abstract

The direct, asymmetric α-amination of aldehydes has been accomplished via a combination of photoredox and organocatalysis. Photon-generated N-centered radicals undergo enantioselective α-addition to catalytically formed chiral enamines to directly produce stable α-amino aldehyde adducts bearing synthetically useful amine substitution patterns. Incorporation of a photolabile group on the amine precursor obviates the need to employ a photoredox catalyst in this transformation. Importantly, this photoinduced transformation allows direct and enantioselective access to α-amino aldehyde products that do not require postreaction manipulation.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aldehydes / chemical synthesis
  • Aldehydes / chemistry*
  • Amination
  • Amines / chemical synthesis
  • Amines / chemistry*
  • Catalysis
  • Oxidation-Reduction
  • Photons
  • Stereoisomerism

Substances

  • Aldehydes
  • Amines