Regioselective Carbon-Carbon Bond Cleavage of an Open-Cage Diketone Derivative of [60]Fullerene by Reaction with Aromatic Hydrazones - Iwamatsu, Sho-ichi; Kuwayama, Toshiki; Kobayashi, Kaoru; Nagase, Shigeru; Murata, Shizuaki (Synthesis, 2004)