| Abstract
| - The efficient reversible functionalization of the periphery of urea adamantyl poly(propylene imine)dendrimers with catalytic sites using noncovalent interactions is described. Phosphine ligands equipped withurea acetic groups, a binding motive complementary to that of the dendrimer host, have been prepared andassembled to the dendrimer support. The resulting supramolecular complex has been used as a multidentateligand system in the palladium-catalyzed allylic amination reaction in a batch process and in a continuous-flow membrane reactor. We found that the activity and selectivity of the dendrimeric complex is similar tothat of the monomer complex, which indicates that the catalytic centers act as independent sites. The size ofthe supramolecular system is sufficiently large and the binding of the guests is strong enabling a good separationof the catalyst components from the reaction mixture using nanofiltration techniques.
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