On the activation of valerolactam with triflic anhydride: the synthesis of ω-trifluorosulfonamido dipeptides using a transpeptidation reaction under mild conditions
作者:Nikolai Kuhnert、Ian Clemens、Rodney Walsh
DOI:10.1039/b417779g
日期:——
The activation of valerolactam with triflic anhydride is studied in detail, initially producing an O-triflated lactam, which rearranges, following the addition of base at higher temperatures, to an N-triflated derivative. This reacts with a series of nucleophiles to produce esters and amides, which are formally dipeptides of Ï-amino acids.
详细研究了缬草内酰胺与三酸酐的活化过程,最初产生的是 O-三氟化内酰胺,在较高温度下加入碱后,该内酰胺重新排列为 N-三氟化衍生物。这种衍生物与一系列的亲核物发生反应,生成酯和酰胺,这些酯和酰胺在形式上是Ï-氨基酸的二肽。