Pd(II) polymeric compounds directed by intermolecular C–H⋯X–C interactions (X = F, Cl): Suzuki–Miyaura cross-coupling catalytic activity by a novel N4-type saturated Pd complex

New palladium polymeric compounds containing novel tetradentate halogen-substituted 6Me2bpX2− ligands (6Me2bpX2− = 1,2-bis(6-methylpyridine-2-carboxamide) halobenzene dianion, X = F for 4, Cl for 5) were constructed by non-classical C–H⋯X–C interactions, and the novel catalyst 5 was used to carry out Suzuki coupling reactions with aryl iodides and aryl boronic acids under mild conditions.

Graphical abstractNew palladium polymeric compounds containing novel tetradentate halogen-substituted 6Me2bpX2− ligands (6Me2bpX2− = 1,2-bis(6-methylpyridine-2-carboxamide) halobenzene dianion, X = F for 4, Cl for 5) were constructed by non-classical C–H⋯X–C interactions, and the novel catalyst 5 was used to carry out Suzuki coupling reactions with aryl iodides and aryl boronic acids under mild conditions.Figure optionsDownload full-size imageDownload as PowerPoint slide