FeCl₃-Mediated Cyclization of [60]Fullerene with N-Benzhydryl Sulfonamides under High-Speed Vibration Milling Conditions

The FeCl3-mediated reaction of [60]fullerene with N-benzhydryl sulfonamides afforded C60-fused indane derivatives using the high-speed vibration milling technique. A possible reaction mechanism involving the unprecedented FeCl3-mediated homolytic C-N bond cleavage of N-benzhydryl sulfonamides is proposed. The electrochemistry of the obtained C60-fused indanes was also investigated.