Ring Transformations of Cyclic Amine N-Imides

Abstract

This paper mostly describes our recent studies on the ring transformations of various aromatic and aliphatic cyclic amine N-imides into novel N-heterocyclic ring systems such as diazepines and diazonines by photochemical or thermal rearrangements. Further ring transformations of these new heterocycles thus obtained into other ring systems are also described.