The development of a broadly applicable procedure for the aza-Lossen rearrangement is reported. This process converts amines into complex hydrazine derivatives in two steps under safe, mild conditions. This method allows the chemoselective formation of N–N bonds, resulting in the synthesis of cyclic and acyclic products while avoiding side reactions of the amphoteric (ambident) nitrogen-substituted
据报道开发了可广泛用于氮杂-洛森重排的程序。此过程可在安全,温和的条件下分两步将胺转化为复杂的
肼衍
生物。该方法允许
化学选择性地形成N–N键,从而合成环状和非环状产物,同时避免了两性(环境性)氮取代的
异氰酸酯中间体的副反应。