engleski

Preparation of the First Isobenzofuran Containing Two Ring Nitrogens: A New Diels-Alder Diene for the Synthesis of Molecular Scaffolds Containing one or more End-Fused 3, 6-di(2-pyridyl)pyridazine Ligands

4, 7-Di(2-pyridyl)-5, 6-diazaisobenzofuran, the first stable isobenzofuran to contain two ring-nitrogens, has been prepared using the s-tetrazine-induced fragmentation of 5, 8-di(2-pyridyl)-1, 4-epoxy-1, 4-dihydrophthalazine and employed in cycloaddition protocols to form scaffold bis-dppn-ligands having specific molecular architectures.

isobenzofurans; cycloadditions; flash vacuum pyrolysis; ligands

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