Iron-Mediated Internal-Oxidant Relay Cascade Reaction: Strategy to Synthesize Fullerenooxazoles and Hydroxyfullerenyl Amides

A novel FeCl₂·4H₂O-mediated internal-oxidant relay cascade reaction has been developed by functionalization of <i>O</i>-substituted benzohydroxamic acids or <i>N</i>-chloro-arylamides with [60]­fullerene. Depending on the nature of the <i>N</i>-substituted groups, fullerenooxazoles or rare hydroxyfullerenyl amides could be obtained in a straightforward and flexible manner. Such a new transformation provides a unique strategy for the synthesis of fullerenooxazoles or hydroxyfullerenyl amides