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 |
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| Authors: | V O Kozminykh D B Oborin V I Goncharov E N Kozminykh |
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| Institution: | (1) Perm State Pedagogical University, Perm, 614990, Russia;(2) Stavropol State Medical Academy, Stavropol, 355023, Russia;(3) Moscow State University of Technologies and Management, Perm Branch, Perm, 614065, Russia |
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| Abstract: | 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-phenylfuran-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.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1156–1158, August, 2007. |
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| Keywords: | 3-hydroxy-3-(2-oxoethyl)-2 3-dihydropyridazin-4(1H)-ones 2-(2-oxoethylidene)furan-3-(2H)-ones reactions with benzoic and p-nitrobenzoic isopropylidenehydrazides |
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