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This manuscript highlights the various dendritic effects reported in the literature. To cite this article: H.-F. Chow et al., C. R. Chimie 6 (2003). [Copyright &y& Elsevier]

A series of [G1] to [G3]-oligo(dibenzylsulfide) dendrimers containing up to 21 interior dibenzyl-sulfide moieties was prepared as starting materials toward the syntheses of two new series of oligo(dibenzyl sulfone) and oligo(phenylenevinylene) dendrimers using two different dendrimer-to-dendrimer conversion strategies. The first strategy entailed the interior functionalization of the [G1] to [G3]-oligo(dibenzylsulfide)s to the corresponding [G1] to [G3]-oligo(dibenzyl sulfone)s via hydrogen peroxide oxidation. Successful conversions of up to 21 interior dibenzylsulfide moieties to the corresponding dibenzyl sulfone groups were demonstrated. The second involved the skeletal rearrangements, also named as dendrimer metamorphosis, of the [G1] and [G2]-oligo(dibenzyl sulfone) dendritic backbones to the corresponding [G1] and [G2]-oligo- (phenylenevinylene)s dendrimers via the Ramberg-Bäcklund (RB) reaction. Up to nine RB rearrangements on a dendrimer skeleton were realized and the conversion efficiency of each single RB rearrangement reaction was found to be 96%. [ABSTRACT FROM AUTHOR]