Copper-catalyzed reductive coupling of tosylhydrazones with amines: a convenient route to α-branched amines

Org Biomol Chem. 2011 Sep 21;9(18):6200-4. doi: 10.1039/c1ob05664f. Epub 2011 Jul 28.

Abstract

A general procedure for the reductive coupling of N-tosylhydrazones with amines in the presence of Cu(acac)(2) and Cs(2)CO(3) has been developed. The protocol is very effective and chemoselective with various primary and secondary aliphatic amines, aminoalcohols as well as azole derivatives to give α-branched amines in good yields.

MeSH terms

  • Amines / chemical synthesis
  • Amines / chemistry*
  • Catalysis
  • Copper / chemistry*
  • Hydrazones / chemistry*
  • Oxidation-Reduction

Substances

  • Amines
  • Hydrazones
  • Copper