Synthesis of a Crushed Fullerene C 60 H 24 through Sixfold Palladium-Catalyzed Arylation

The synthesis of a new C3v-symmetric crushed fullerene C60H24 (5) has been accomplished in three steps from truxene through sixfold palladium-catalyzed intramolecular arylation of a syn-trialkylated truxene precursor. Laser irradiation of 5 induces cyclodehydrogenation processes that result in the formation of C60, as detected by LDI-MS