Deprotonation of allylic esters of peptides at -70 °C in the presence of metal salts results in the formation of metal peptide enolate complexes, which undergo Claisen rearrangement on warming to room temperature to produce stereoselectively modified peptides. By far the best results are obtained with manganese enolates. With these enolates, the amino acids incorporated in the peptide chain have no
Application of the chelate enolate Claisen rearrangement to the modification of dipeptides
作者:Uli Kazmaier、Sabine Maier
DOI:10.1039/a805784b
日期:——
Manganese enolates of allylic esters of dipeptides are suitable to undergo Claisen rearrangements, giving rise to unsaturated peptides in excellent yield.