Aromatic Nitro Groups and Their Reactions with Chelated Ester Enolates
作者:Uli Kazmaier、Daniel Stolz、Rigobert Pick
DOI:10.1055/s-2006-950228
日期:——
Chelated amino acid ester enolates react with aromatic nitro compounds in a 1,3-addition mode at the nitro group giving amino acids bearing an aryl(hydroxy)amino side chain. Best results were obtained with trifluoroacetyl-protected glycinates. Two equivalents of enolate are necessary for complete conversion, because one equivalent is oxidized during the reaction.