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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Organic Chemistry</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Organic Chemistry</journal-title><trans-title-group xml:lang="ru"><trans-title>Журнал органической химии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0514-7492</issn><issn publication-format="electronic">3034-6304</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">697744</article-id><article-id pub-id-type="doi">10.7868/S3034630425060145</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>ЭКСПЕРИМЕНТАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Reaction of 1-Antipyryl-4-aroyl-5-methoxycarbonyl-1H-pyrrole-2,3-diones with Ethylenediamine</article-title><trans-title-group xml:lang="ru"><trans-title>ВЗАИМОДЕЙСТВИЕ 1-АНТИПИРИЛ-4-АРОИЛ-5-МЕТОКСИКАРБОНИЛ-1H-ПИРРОЛ-2,3-ДИОНОВ С ЭТИЛЕНДИАМИНОМ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7267-7577</contrib-id><name-alternatives><name xml:lang="en"><surname>Lyadov</surname><given-names>V. A</given-names></name><name xml:lang="ru"><surname>Лядов</surname><given-names>В. А</given-names></name></name-alternatives><email>vadim.lyadov2017@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1702-2332</contrib-id><name-alternatives><name xml:lang="en"><surname>Shavrina</surname><given-names>N. V</given-names></name><name xml:lang="ru"><surname>Шаврина</surname><given-names>Н. В</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1220-3625</contrib-id><name-alternatives><name xml:lang="en"><surname>Denislamova</surname><given-names>E. S</given-names></name><name xml:lang="ru"><surname>Денисламова</surname><given-names>Е. С</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7148-4450</contrib-id><name-alternatives><name xml:lang="en"><surname>Maslivets</surname><given-names>A. N</given-names></name><name xml:lang="ru"><surname>Масливец</surname><given-names>А. Н</given-names></name></name-alternatives><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Perm National Research Polytechnic University</institution></aff><aff><institution xml:lang="ru">Пермский национальный исследовательский политехнический университет</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Perm State University</institution></aff><aff><institution xml:lang="ru">Пермский государственный национальный исследовательский университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-06-15" publication-format="electronic"><day>15</day><month>06</month><year>2025</year></pub-date><volume>61</volume><issue>6</issue><issue-title xml:lang="en">VOL 61, NO6 (2025)</issue-title><issue-title xml:lang="ru">ТОМ 61, №6 (2025)</issue-title><fpage>750</fpage><lpage>753</lpage><history><date date-type="received" iso-8601-date="2025-12-04"><day>04</day><month>12</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2026-06-15"/></permissions><self-uri xlink:href="https://vietnamjournal.ru/0514-7492/article/view/697744">https://vietnamjournal.ru/0514-7492/article/view/697744</self-uri><abstract xml:lang="en"><p>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-hexahydropyrrolo[2,3-e] [1,4]diazepine-8a(1H)-carboxylates, the structure of which was confirmed by NMR <sup>1</sup>H and IR spectroscopy.</p></abstract><trans-abstract xml:lang="ru"><p>Метил-3-ароил-2,4-дигидрокси-1-(1,5-диметил-3-оксо-2-фенил-2,3-дигидро-1Н-пиразол-4ил)-5-оксо-2,5-дигидро-1Н-пиррол-2-карбоксилаты реагируют с этилендиамином с образованием метил-5-арил-8-(1,5-диметил-3-оксо-2-фенил-2,3-дигидро-1H-пиразол-4ил)-6,7-диоксо-2,3,4,6,7,8-гексагидропироло[2,3-е][1,4]диазепин-8а(1H)-карбоксилатов, структура которых подтверждена методом ЯМР 'Н и ИК-спектроскопии.</p></trans-abstract><kwd-group xml:lang="en"><kwd>1H-pyrrole-2,3-diones</kwd><kwd>diazepines</kwd><kwd>ethylenediamine</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>1H-пиррол-2,3-дионы</kwd><kwd>диазепины</kwd><kwd>этилендиамин</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Министерства науки и высшего образования РФ (проект № FSNF-2025-0013)</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Машковский М.Д. 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