REACTION OF 2-(2-OXOETHYLIDENE)FURAN-3(2H)-ONES WITH ISOPROPYLIDENEHYDRAZIDES OF AROMATIC CARBOXYLIC ACIDS: SYNTHESIS OF 3-HYDROXY-3-(2-OXOETHYL)-2,3-DIHYDROPYRIDAZIN-4(1H)-ONES
DOI:
https://doi.org/10.1007/7414Keywords:
3-hydroxy-3-(2-oxoethyl)-2, 3-dihydropyridazin-4(1H)-ones, 2-(2-oxoethylidene)furan-3-(2H)-ones, reactions with benzoic and p-nitrobenzoic isopropylidenehydrazidesAbstract
3-Hydroxy-3-(2-oxoethyl)-6-phenyl-2,3-dihydropyridazin-4(1H)-ones were obtained by the reaction of methyl 3-oxo-5-phenylfuran-2(3H)-ylideneacetate or 2-[2-(4-chlorophenyl)-2-oxoethylidene]-5-phenyl-furan-3(2H)-one with benzoic or p-nitrobenzoic isopropylidenehydrazides. Equilibrium C(5)H and C(5)H2 tautomeric forms were detected in solutions of the 4-chlorophenyl derivatives in DMSO-d6.How to Cite
Kozminykh, V. O.; Oborin, D. B.; Goncharov, V. I.; Kozminykh, E. N. Chem. Heterocycl. Compd. 2007, 43, 978. [Khim. Geterotsikl. Soedin. 2007, 1156.]
For this article in the English edition see DOI 10.1007/s10593-007-0152-4