The reactions of [60] fullerene with excess fluoroalkanesulfonyl azides RfSO2N3 in o- dichlorobenzene under thermal or microwave irradiation condition afforded monoadduct opened [5, 6]-bridged azafulleroids. While, similarly treatment of 2, 2, 2-trifluoroethyl azides CF3CH2N3 with C60 gave two monoadducts, ie, opened [5, 6]-bridged azafulleroids, closed [6, 6]-bridged Aziridino-fullerene, and some multi-addition product. A general mechanism ...