Organocatalysed asymmetric beta-amination and multicomponent syn-selective diamination of alpha,beta-unsaturated aldehydes

Chemistry. 2007;13(32):9068-75. doi: 10.1002/chem.200700696.

Abstract

An easy and affordable route for obtaining chiral beta-aminated- and alpha,beta-diaminated aldehydes, 1,3-aminoalcohols, and related compounds by using organocatalysis is presented. The chiral secondary amine (S)-2-[bis(3,5-bistrifluoromethylphenyl)trimethylsilanyloxymethyl]pyrrolidine is used as the catalyst to activate alpha,beta-unsaturated aldehydes, which allows succinimide to add in a 1,4-regio- and stereoselective fashion thereby forming N-protected 1,3-aminoaldehydes in good yields and enantioselectivities. This is followed by two easy transformations giving rise to optically active 1,3-aminoalcohols, a common motif in many biologically active compounds, for example, fibrinogen receptor antagonists. Furthermore, optically active alpha,beta-syn-diaminated aldehydes were obtained by the addition of diethyl azodicarboxylate in a one-pot reaction.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aldehydes / chemical synthesis*
  • Aldehydes / chemistry
  • Amination
  • Amino Alcohols / chemical synthesis
  • Amino Alcohols / chemistry
  • Catalysis
  • Molecular Structure
  • Pyrrolidines / chemistry*
  • Stereoisomerism

Substances

  • Aldehydes
  • Amino Alcohols
  • Pyrrolidines