1H, 13C, and 15N NMR spectra of some pyridazine derivatives.
(1)H, (13)C, and (15)N NMR chemical shifts for pyridazines 4-22 were measured using 1D and 2D NMR spectroscopic methods including (1)H-(1)H gDQCOSY, (1)H-(13)C gHMQC, (1)H-(13)C gHMBC, and (1)H-(15)N CIGAR-HMBC experiments.