An efficient sonochemical synthesis of novel fulleropyrazolines through the reaction of [60] fullerene with phenylhydrazones and PhI(OAc)2

To obtain a rapid, ecient and green synthesis of fulleropyrazoline derivatives, ultrasonic irradiation has been applied to the reaction mixtures containing substituted phenylhydrazones, C60 and PhI(OAc)2. This procedure allowed products, at room temperature, to be achieved in good yield and in a short time without any side products. This convenient procedure will provide a further increase of diversity within the fullerene derivatives.