Regioselective Synthesis of Fullerene Tris‐adducts for the Preparation of Clickable Fullerene [3:3]‐Hexa‐adduct Scaffolds

Macrocyclic tris-malonates incorporating cleavable di-tert-butylsilylene protecting groups have been prepared by a stepwise approach and used for the regioselective tris-functionalization of C60. Fullerene tris-adducts with an e,e,e addition pattern thus obtained. The bridging cleaved to liberate terminal alcohol functions fullerene tris-adduct. This key building block has further functionalized generate clickable [3:3]-hexa-adduct scaffold allowing successive introduction two azide reagents.