Synthesis and Properties of gem-(Difluorocyclopropyl)amine Derivatives of Bicyclo[n.1.0]alkanes

Generation of difluorocarbene(carbenoid) in the presence of enamines derived from cyclic ketones results in overall insertion of CF₂ to produce bicyclic difluorocyclopropylamines. These adducts are very weakly basic, and their thermal stabilities vary markedly with their structures.