of a formyl-fullerenoporphyrinbuildingblock. Condensation of this aldehyde with pyrrole in CHCl3 with BF3·Et2O as catalyst followed by p-chloranil oxidation yielded a pentaporphyrinic scaffold surrounded by four peripheral C60 subunits. By following a similar strategy, a bis-porphyrin buildingblock bearing an aldehyde function was prepared and used for the construction of a nonaporphyrin array by
synthetic method for the directional construction of strings of spherical fullerenes along stacks of planar oligothiophenes is described. The key to success was the preparation of fullerenes with two solubilizing tri(ethylene glycol) tails (bold) and an aromatic aldehyde for covalent capture by hydrazides along the oligothiophene stacks (red).
New oligophenylenevinylene-terminated phenylenevinylene dendrons have been prepared and attached to C-60 by a 1,3-dipolar cycloaddition of the azomethine ylides generated in situ from the dendritic aldehydes and N-methylglycine. Preliminary photophysical investigations of the resulting fullerodendrimers have revealed interesting light-harvesting properties. (C) 2001 Published by Elsevier Science Ltd.
A Tetraphenylporphyrin with Four Fullerene Substituents