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February 28, 2026

Reaction of 1-Antipyryl-4-aroyl-5-methoxycarbonyl-1H-pyrrole-2,3-diones with Ethylenediamine

Key Points

To investigate the reaction of methyl 3-aroyl-2,4-dihydroxy-1-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-5-oxo-2,5-dihydro-1H-pyrrole-2-carboxylates with ethylenediamine.
Reacted methyl 3-aroyl-2,4-dihydroxy compounds with ethylenediamine
Characterized products using NMR H and IR spectroscopy
New methyl 5-aryl-8-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-6,7-dioxo-2,3,4,6,7,8-hexahydropyrrolo[2,3-e][1,4]diazepine-8a(1H)-carboxylates synthesized
Structural confirmation achieved through NMR H and IR spectroscopy.

Abstract

Methyl 3-aroyl-2,4-dihydroxy-1-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-5-oxo-2,5-dihydro-1H-pyrrole-2-carboxylates react with ethylenediamine to form methyl 5-aryl-8-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-6,7-dioxo-2,3,4,6,7,8-hexahydropyrrolo2,3-e 1,4diazepine-8a(1H)-carboxylates, the structure of which was confirmed by NMR H and IR spectroscopy.

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Cite This Study

V.A. Lyadov (Wed,) studied this question.

synapsesocial.com/papers/69a286370a974eb0d3c01080 https://doi.org/https://doi.org/10.7868/s3034630425060145