| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5275546 | Tetrahedron Letters | 2007 | 5 Pages |
Abstract
One or two imidazolium groups have been attached to the 3- and 6-positions of the pyridazine heterocycle, providing valuable precursors for mono- and binucleating NHC/pyridazine hybrid ligands. For N -methyl imidazole with specific backbone substituents an unexpected methyl group transfer is observed, which defines the scope of the synthetic procedure. H-Bonding patterns in the solid state are elucidated by X-ray crystallography for seven chloride or PF6- salts of the new compounds.
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