Author: Besada, P.; Costas, T.; Vila, N.; Chessa, C.; Teran, C.
Description: Several pyridazin-3(2H)-one derivatives were synthesized starting from alkyl furans using oxidation with singlet oxygen to give 4-methoxy or 4-hydroxybutenolides, key intermediates of the synthetic strategy followed. For all pyridazinones reported, a complete assignment of the (1)H and (13)C NMR spectra using one- and two-dimensional NMR spectroscopic methods, which included NOE, DEPT, COSY, HSQC and HMBC experiments, was accomplished. Correlations between the chemical shifts of the heterocyclic ring atoms and substituents at N-2 and C-6 were analyzed.
Subject headings: Synthesis; Pyridazin; Alkyl furans
Publication year: 2011
Journal or book title: Magnetic Resonance in Chemistry : MRC
Volume: 49
Issue: 7
Pages: 437-442
Find the full text : https://onlinelibrary.wiley.com/doi/abs/10.1002/mrc.2755
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Type: Journal Article
Serial number: 34