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Unsymmetrical pyridylthioether monomers derived from 2,6-bis(hydroxymethyl)-3-hydroxypyridine hydrochloride have been used to synthesize dendritic structures by a convergent route. The coupling of the monomers has been achieved by the Mitsunobu reaction. The presence of repeating SNS pincer units makes thesemolecules precursors of metallodendrimers. The complexation of each binding site with palladium...