CuI-Catalyzed Oxidative [3 + 2] Reaction of Fullerene with Amidines or Amides Using Air as the Oxidant: Preparation of Fulleroimidazole or Fullerooxazole Derivatives

Abstract

CuI-catalyzed oxidative reaction of amidines with C60 using air as the oxidant has been exploited for the easy preparation of fulleroimidazole derivatives. Furthermore, this kind of CuI-catalyzed [3 + 2] reaction has also been successfully applied in the synthesis of fullerooxazole derivatives starting from amides for the first time. The substrate scope is broad, and the process is particularly cheap and simple.