Summary.
With the aim of immobilizing bis(2-pyridylimino)isoindolate (BPI) ligands their backbone structure has been functionalized with several linker units. Their fixation was carried out at the stage of the phthalodinitrile precursor by nucleophilic ipso-substitution of 4-nitrophthalodinitrile. Subsequent synthesis of the functionalized phthalodinitriles with two molar equivalents of the 2-aminopyridine derivatives gave the corresponding BPI ligands. Reaction of the ethyleneglycol functionalized BPI derivative with the zeroth generation carbosilane dendrimer [G-0]4-exo-Cl yielded the functionalized dendrimer [G-0]4-exo-[O(CH2)2O]-10-MeBPI (7). The synthesis of the palladium complexes was carried out by reaction of the protioligands with [(PhCN)2PdCl2] in benzene using triethylamine as auxiliary base whereas the first examples of BPI-platinum complexes were prepared using [(COD)PtCl2] as starting material.
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Meder, M., Galka, C. & Gade, L. Bis(2-pyridylimino)isoindole (BPI) Ligands with Novel Linker Units: Synthesis and Characterization of Their Palladium and Platinum Complexes. Monatsh. Chem. 136, 1693–1706 (2005). https://doi.org/10.1007/s00706-005-0368-x
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DOI: https://doi.org/10.1007/s00706-005-0368-x