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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">10.21285/2227-2925-2020-10-4-556-563</article-id><article-id custom-type="elpub" pub-id-type="custom">vuzbiochemi-470</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>ХИМИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CHEMICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>Синтез и использование 10-гидрокси-3,3,6,6-тетраметил-9-(4-гидрокси-3-метоксифенил)-1,2,3,4,5,6,7,8,9,10-декагидроакридин-1,8-диона в качестве индикатора кислотно-основного титрования</article-title><trans-title-group xml:lang="en"><trans-title>Synthesis and using of 10-hydroxy-3,3,6,6-tetramethyl-9-(4-hydroxy-3-methoxyphenyl)-1,2,3,4,5,6,7,8,9,10-decahydroacridin-1,8-dion as acid base titration indicator</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>Пырко</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Pyrko</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пырко Анатолий Николаевич - кандидат химических наук, доцент кафедры экологической химии и биохимии.</p><p>220070, Минск, ул. Долгобродская, 23/1</p></bio><bio xml:lang="en"><p>Anatoliyi N. Pyrko - Cand. Sci. (Chemistry). Associate Professor, Environmental Chemistry and Biochemistry Department.</p><p>23, Dolgobrodskaya St., Minsk, 220070</p></bio><email xlink:type="simple">pyrko@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Международный государственный экологический институт им. А.Д. Сахарова, Белорусский государственный университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>International Sakharov Environmental Institute of Belarusian State University</institution><country>Belarus</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>556</fpage><lpage>563</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Пырко А.Н., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Пырко А.Н.</copyright-holder><copyright-holder xml:lang="en">Pyrko A.N.</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/470">https://vuzbiochemi.elpub.ru/jour/article/view/470</self-uri><abstract><p>Целью данной работы являлся синтез нового производного 10-гидроксидекагидроакридин-1,8-диона, определение структуры и изучение возможности использования этого соединения в качестве индикатора кислотно-основного титрования. Синтез 10-гидрокси-3,3,6,6-тетраметил-9-(4-гидрокси-3-метоксифенил)-1,2,3,4,5,6,7,8,9,10-декагидроакридин-1,8-диона осуществлен с учетом принципов «зеленой химии» взаимодействием димедона, гидроксиламина и 4-гидрокси-3-метокси-бензойного альдегида в экологически безопасном водно-спиртовом или водном растворе. В качестве катализатора использовалась лимонная кислота либо додецил сульфат натрия соответственно. Очистку синтезированного соединения осуществляли кристаллизацией из этанола. Полученное соединение характеризовали с помощью спектров 1Н ЯМР, 13С ЯМР, поглощения и флуоресценции в УФ-видимой области. В водно-спиртовом растворе гидроксидекагидроакридиндиона наблюдается поглощение фиолетового света, максимум полосы поглощения которого смещается в область голубого света при добавлении к раствору щелочи. При облучении этанольного раствора УФ-излучением возникает двухполосная флуоресценция в видимой области. Одна полоса исчезает при добавлении основания в раствор. Структура полученного соединения подтверждена масс-спектрометрическим анализом высокого разрешения. В масс-спектре 10-гидрокси-3,3,6,6-тетра-метил-9-(4-гидрокси-3-метоксифенил)-1,2,3,4,5,6,7,8,9,10-декагидроакридин-1,8-диона имеется пик иона [M+1]+. Пик основного иона соответствует трициклическому фрагменту элиминирования ароматического цикла молекулярного иона. Это вещество бесцветно в кислых и нейтральных растворах, а в основных имеет розовый цвет. Кислотную константу диссоциации этого соединения в водно-спиртовом растворе определяли спектрофотометрическим методом в УФ-видимой области. Показано, что полученное соединение может быть использовано в качестве индикатора титрования сильных кислот и оснований.</p></abstract><trans-abstract xml:lang="en"><p>The aim of this work is the synthesis of new 10-hydroxydecahydroacridine-1,8-dione derivative, determination of the structure and to study the possibility of using this compound as an indicator of acid-base titration. Environmentally friendly synthesis of 10-hydroxy-3,3,6,6-tetramethyl-9-(4-hydroxy-3-methoxyphe-nyl)-1,2,3,4,5,6,7,8,9,10-decahydroacridin-1,8-dion has been developed by one pot interaction of dimedone, hydroxylamine and 4-hydroxy-3-methoxybenzoic aldehyde in water-alcohol or water solution using citric acid or sodium dodecyl sulfate as catalysts, respectively. Purification of the synthesized compound was carried out by crystallization from ethanol. The obtained compound was characterised by 1H NMR ,13C NMR and UV-Vis spectroscopies. This substance in water-alcohol solution shows intense violet light absorption. Addition alkali induces red shift of absorption maximum to the blue region. UV irradiation of solution of this substance in alcohol induces two-band fluorescence in the visible region. One band disappears upon addition of a base in solution. The structure of the obtained compound was confirmed by high resolution massspectrometry analysis. In the mass-spectrum of 10-hydroxy-3,3,6,6-tetramethyl-9-(4-hydroxy-3-methoxyphe-nyl)-1,2,3,4,5,6,7,8,9,10-decahydroacridin-1,8-dion observed [M+1]+ ion peak. The base peak corresponds to tricyclic fragment due to the elimination aromatic cycle from molecular ion. This substance is colorless in acidic and neutral and pink in base solutions. The acid dissociation constant of this compound in a water-alcohol solution was determined by the UV-Vis spectroscopic technique. It was shown that the obtained compound can be used as an indicator for the titration of strong acids and bases.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>органический синтез</kwd><kwd>производное 10-гидроксидекагидроакридиндиона</kwd><kwd>константа диссоциации кислоты</kwd><kwd>индикатор кислотно-основного титрования</kwd><kwd>спектральные методы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>organic synthesis</kwd><kwd>10-hydroxydecahydroacridinedione derivative</kwd><kwd>acid dissociation constant</kwd><kwd>indicator for the acid-base titration</kwd><kwd>spectral methods</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">Ozols Ya.Ya., Pyrko A.N., Lakhvich F.A., Vigante V.A., Dubure R.R., Dubur G.Ya., et al. 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