Catalytic removal of N-allyloxycarbonyl groups using the [CpRu(IV)(pi-C3H5)(2-quinolinecarboxylato)]PF6 complex. A new efficient deprotecting method in peptide synthesis

J Org Chem. 2006 Jun 9;71(12):4682-4. doi: 10.1021/jo060445r.

Abstract

A variety of amines including even sterically less demanding and highly nucleophilic secondary amines have been efficiently deprotected without decarboxylative N-allylation from the corresponding N-allyloxycarbonyl (N-AOC) compounds by using a catalytic amount of [CpRu(IV)(pi-C3H5)(2-quinolinecarboxylato)]PF6 in the presence of 1 molar amount of trifluoromethanesulfonic acid, the general utility of which has been demonstrated by the efficient synthesis of a collagen protein unit tripeptide, Pro-Pro-Gly.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amines / chemistry
  • Catalysis
  • Collagen
  • Methods
  • Oligopeptides / chemical synthesis*
  • Peptides / chemical synthesis*

Substances

  • Amines
  • Oligopeptides
  • Peptides
  • prolyl-prolyl-glycine
  • Collagen