Ala’a K. Abdul-Sada, Anthony G. Avent, David R. M. Walton and Oliver B. Woodhouse
Reaction of C60Ph5Cl with cyanogen bromide results in replacement of the chlorine by BrCN and ring closure between the addend and an adjacent phenyl ring, giving a 1-bromoisoquinoline derivative of [60]fullerene; this readily undergoes nucleophilic replacement of Br by OH to give the corresponding 1-isoquinolone derivative.