Chelated Ester Enolates as Versatile Nucleophiles for Direct Nucleophilic Attack on Aromatic Nitro Groups
作者:Uli Kazmaier、Daniel Stolz、Rigobert Pick
DOI:10.1055/s-2006-944189
日期:2006.6
Chelated amino acid ester enolates react with aromaticnitro compounds at the nitrogen atom. Best results were obtained with TFA-protected glycinates.
螯合氨基酸酯烯醇化物在氮原子处与芳香族硝基化合物反应。使用 TFA 保护的甘氨酸盐获得了最佳结果。
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.