Dendrimer interior functional group conversion and dendrimer metamorphosis-new approaches to the synthesis of oligo(dibenzyl sulfone) and oligo(phenylenevinylene) dendrimers

A series of [G1] to [G3]-oligo(dibenzylsulfide) dendrimers containing up to 21 interior dibenzylsulfide moieties is prepared as starting materials toward the syntheses of two new series of oligo(dibenzylsulfone) and oligo(phnylenevinylene) dendrimers using two different dendrimer-to-dendrimer conversion strategies. The findings demonstrate successful conversions of up to 21 interior dibenzylsulfide moieties to the corresponding dibenzyl sulfone groups.