Simple Modification in Hexakis-Addition for Efficient Synthesis of C60-Centered Dendritic Molecules Bearing Multiple Aromatic Chromophores

In the templated hexakis-addition reaction of malonic esters with C(60) to prepare dendritic macromolecules that are terminated symmetrically with 12 derivatized pyrenes, a simple modification to use a much larger excess of the bromination agent resulted in dramatic increases in the product yields. [structure: see text]