Synthesis of dendritic polypyridines using divergent methodology

The synthesis of dendritic polypyridines is described. The dendrimers were prepared by a divergent approach using diethl 4-hydroxypyridine-2,6-dicarboxylate 1 and 4-hydroxy-2,6-bis(acetoxymethyl)pyridine 6 as building blocks. The transformation of the surface functionalities of the second generation dendrimer led to imperfections which did not allow us to further increase the size of the macromolecule.