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。