Palladium-triazine aminoalcohol nanocomposite, its reactivity on Heck reaction

Several studies on dendrimer synthesis and reactivity have been carried out in order to control the size and functionality of compounds. From such studies, it has been suggested that these molecules may be used as ligands to synthesize potential homogeneous catalysts, firstly, in order to get the benefits of both homo- and heterogeneous catalysis (i.e. high activity and/or selectivity, good reproducibility, accessibility of the metal site, intermediaries detection, etc.); secondly, because, unlike other polymeric species, they can be readily recoverable after reaction. In this paper, following our interest in homogeneous catalysts, we would like to present our findings from studies on the synthesis and characterization of a prime molecule, triazine aminoalcohol, as starting or zero generation dendrimer and its interaction-reaction with palladium nanoparticles as well as our results on the reactivity on Heck type catalysis.

The composite Pd-G0THT shows a high yield of trans- and cis-stilbene products activating even chlorobenzene in Heck reaction, mainly attributed to nanoparticle size reached inside the dendrimer. Figure optionsDownload as PowerPoint slide