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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vuzbiochemi</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Прикладная химия и биотехнология</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of Universities. Applied Chemistry and Biotechnology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2227-2925</issn><issn pub-type="epub">2500-1558</issn><publisher><publisher-name>ИРНИТУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21285/2227-2925-2020-10-4-581-589</article-id><article-id custom-type="elpub" pub-id-type="custom">vuzbiochemi-473</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ФИЗИКО-ХИМИЧЕСКАЯ БИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICOCHEMICAL BIOLOGY</subject></subj-group></article-categories><title-group><article-title>Термодеструкция продукта конденсации  d -маннозы с п -аминоацетанилидом в системах без растворителя</article-title><trans-title-group xml:lang="en"><trans-title>Thermal destruction of d -mannose condensation products using p -aminoacetanilide in solvent-free systems</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Черепанов</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Cherepanov</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Черепанов Игорь Сергеевич - кандидат химических наук, доцент.</p></bio><bio xml:lang="en"><p>Igor S. Cherepanov - Cand. Sci. (Chemistry), Associate Professor.</p></bio><email xlink:type="simple">cherchem@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Удмуртский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Udmurt State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>07</day><month>01</month><year>2021</year></pub-date><volume>10</volume><issue>4</issue><fpage>581</fpage><lpage>589</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Черепанов И.С., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Черепанов И.С.</copyright-holder><copyright-holder xml:lang="en">Cherepanov I.S.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://vuzbiochemi.elpub.ru/jour/article/view/473">https://vuzbiochemi.elpub.ru/jour/article/view/473</self-uri><abstract><p>Методами электронной и колебательной спектроскопии изучена термодеструкция продукта конденсации D-маннозы с п-аминоацетанилидом в системах без растворителя, в частности, вазелиновом масле и KBr-матрице. Термодеструкция маннозиламина в KBr-матрице сопровождается интенсивным окрашиванием, при этом полосы в ИК-спектрах, характеризующие функционализацию аминоацетанилида сохраняют свое положение и интенсивность, что свидетельствует об отсутствии трансформации аминного фрагмента. Отмечается появление полос ено-новых О=С-С=С-фрагментов 1645, 1680, 1690 см-1, а также 1750, 1780 см-1, относимых к валентным С=О колебаниям сложных эфиров и лактонов, образующихся, вероятно, в результате трансформации первичных продуктов распада маннозиламина. Термодеструкция суспензии маннозила-мина в вазелиновом масле показывает меньшую в сравнении с процессами в KBr-матрице степень трансформации структуры маннозиламина в условиях эксперимента. В спектрах регистрируются полосы колебаний С=О в различном структурном окружении, а также характеризующее элиминирование ариламина смещение сигнала 1280 см-1 в низкочастотную область. Спектры отражения спиртовых растворов продуктов деструкции показывают наличие только полосы 1750 см-1, тогда как частота 1780 см-1 не проявляется, вероятно, по причине лабильности лактонов в растворах, обуславливающей их рециклизацию. Анализ колебательных спектров показывает отсутствие характерных для меланоидиновых N-гетероциклов полос вследствие преимущественного образования ациклических сопряженных систем и производных карбоновых кислот в исследованных системах без растворителя. В электронных спектрах спиртовых растворов продуктов деструкции обеих систем регистрируются максимумы около 260 нм, отвечающие поглощению оксиеноно-вых хромофоров и области непрерывного поглощения в видимой части спектра, обусловленные образованием протяженных хромофоров - продуктов конденсации интермедиатов распада манно-зиламина Полученные результаты могут быть полезны как при выборе условий получения продуктов реакции Майяра с заданной функционализацией, так и при разработке методов синтеза антиокислительных агентов для защиты от окисления полимеров и масел.</p></abstract><trans-abstract xml:lang="en"/><kwd-group xml:lang="ru"><kwd>d-манноза</kwd><kwd>п-аминоацетанилид</kwd><kwd>лактоны</kwd><kwd>меланоидины</kwd><kwd>термодеструкция</kwd><kwd>спектроскопия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>d-mannose</kwd><kwd>p-aminoacetanilide</kwd><kwd>lactones</kwd><kwd>melanoidins</kwd><kwd>thermal destruction</kwd><kwd>spectroscopy</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Gobert J., Glomb M.A. Degradation of glucose: reinvestigation of reactive a-dicarbonyl compounds // Journal of Agricultural and Food Chemistry. 2009. 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