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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">vestich</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия химических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Chemical Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8331</issn><issn pub-type="epub">2524-2342</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8331-2020-56-3-293-300</article-id><article-id custom-type="elpub" pub-id-type="custom">vestich-597</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>ОРГАНИЧЕСКАЯ ХИМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORGANIC CHEMISTRY</subject></subj-group></article-categories><title-group><article-title>Синтез производных малео- и цитраконопимаровых кислот с мезогенными группами в качестве хиральных допантов ЖК-композиций</article-title><trans-title-group xml:lang="en"><trans-title>Synthesis of maleo- and citraconopimaric acid derivatives with mesogenic groups as chiral dopants to LC-compositions</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>Бей</surname><given-names>М. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Bei</surname><given-names>M. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бей Максим Петрович - кандидат химических наук, ведущий научный сотрудник.</p><p>Ул. Ф. Скорины, 36, 220141, Минск</p></bio><bio xml:lang="en"><p>Maksim P. Bei - Ph. D. (Chemistry), Leading Researcher.</p><p>36, F. Skoryna Str., 220141, Minsk</p></bio><email xlink:type="simple">bey@ichnm.basnet.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Муравский</surname><given-names>Ал. Ан.</given-names></name><name name-style="western" xml:lang="en"><surname>Muravskii</surname><given-names>Al. An.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Муравский Александр Анатольевич - кандидат физико-математических наук, заведующий лабораторией.</p><p>Ул. Ф. Скорины, 36, 220141, Минск</p></bio><bio xml:lang="en"><p>Alexander An. Muravskii - Ph. D. (Physics and Mathematics), Head of the Laboratory.</p><p>36, F. Skoryna Str., 220141, Minsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Муравский</surname><given-names>Ан. Ал.</given-names></name><name name-style="western" xml:lang="en"><surname>Muravskii</surname><given-names>An. Al.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Муравский Анатолий Александрович - кандидат физико-математических наук, ведущий научный сотрудник.</p><p>Ул. Ф. Скорины, 36, 220141, Минск</p></bio><bio xml:lang="en"><p>Anatoli Al.Murauskii - Ph. D. (Physics and Mathematics), Leading Researcher.</p></bio><email xlink:type="simple">alexander.muravsky@ichnm.basnet.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чепелева</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Chepeleva</surname><given-names>D. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чепелева Доминика Сергеевна - мл. научный сотрудник.</p><p>Ул. Ф. Скорины, 36, 220141, Минск</p></bio><bio xml:lang="en"><p>Dominika S. Chepeleva - Junior Researcher.</p><p>36, F. Skoryna Str., 220141, Minsk</p></bio><email xlink:type="simple">dominika.chepele-va@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пучкова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Puchkova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пучкова Наталья Валерьевна - научный сотрудник.</p><p>Ул. Ф. Скорины, 36, 220141, Минск</p></bio><bio xml:lang="en"><p>Natallia V. Puchkova - Researcher.</p><p>36, F. Skoryna Str., 220141, Minsk</p></bio><email xlink:type="simple">Puchkova@ichnm.basnet.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ювченко</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Yuvchenko</surname><given-names>А. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ювченко Анатолий Петрович - кандидат химических наук, старший научный сотрудник, зам. директора.</p><p>Ул. Ф. Скорины, 36, 220141, Минск</p></bio><bio xml:lang="en"><p>Anatolij P. Yuvchenko - Ph. D. (Chemistry), Senior Researcher, Deputy Director.</p><p>36, F. Skoryna Str., 220141, Minsk</p></bio><email xlink:type="simple">mixa@ichnm.basnet.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт химии новых материалов, Национальная академия наук Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of Chemistry of New Materials, National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>28</day><month>08</month><year>2020</year></pub-date><volume>56</volume><issue>3</issue><fpage>293</fpage><lpage>300</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бей М.П., Муравский А.А., Муравский А.А., Чепелева Д.С., Пучкова Н.В., Ювченко А.П., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Бей М.П., Муравский А.А., Муравский А.А., Чепелева Д.С., Пучкова Н.В., Ювченко А.П.</copyright-holder><copyright-holder xml:lang="en">Bei M.P., Muravskii A.A., Muravskii A.A., Chepeleva D.S., Puchkova N.V., Yuvchenko А.P.</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://vestichem.belnauka.by/jour/article/view/597">https://vestichem.belnauka.by/jour/article/view/597</self-uri><abstract><p>Разработан метод синтеза аминоамидов малеопимаровой кислоты, заключающийся в обработке малеопимаровой кислоты избытком тионилхлорида при 18-20 °С и последующем взаимодействии полученного хлорангидрида с ароматическими диаминами (1,4-диаминобензол, 4,4’-диаминодифенил) с выходами 80,5-94,3 %. Реакцией аминоамидов малеопимаровой кислоты с алифатическими и ароматическими альдегидами (изовалериановый альдегид, бензальдегид, 4-метоксибензальдегид, 4-хлорбензальдегид) получены азометины малеопимаровой кислоты, содержащие мезогенные группы (4-бифенил, 4-фениламинобензилиден) с выходами 56,5-99,3 %. Впервые синтезированы 4-бифениламиды малеопимаровой и цитраконопимаровой кислот реакцией хлорангидридов этих кислот и 4-аминобифенила с выходами 91,3-94,8 %. Установлено, что полученные вещества являются оптически активными, удельное вращение ([α]D) синтезированных соединений составляет -45,0° ÷ -118,2°. Показано, что при введении в нематическую жидкокристаллическую матрицу (MLC 6809-000, Merck) ряда полученных добавок (амидов и азометинов малеопимаровой кислоты) образуется хиральная ЖК-фаза. Закручивающая способность исследованных соединений достигает 12,4 мкм-1. Полученные данные могут быть применены при разработке новых промышленных хиральных ЖК-композиций для использования в электронной промышленности при производстве ЖК-индикаторов.</p></abstract><trans-abstract xml:lang="en"><p>The method for maleopimaric acid aminoamides synthesis has been developed, which involves the treatment of maleopimaric acid with an excess of thionyl chloride at 18-20 °С and the subsequent reaction of the obtained maleopimaric acid chloride and aromatic diamines (1,4-diaminobenzene, 4,4’-diaminodiphenyl) in 80.5-94.3 % yields. The reaction of maleopimaric acid aminoamides with aliphatic and aromatic aldehydes (isovalerianic aldehyde, benzaldehyde, 4-methoxy-benzaldehyde, 4-chlorobenzaldehyde) gave maleopimaric acid azomethines containing mesogenic groups (4-biphenyl, 4-phe-nylaminobezilidene) in 56.5-99.3 % yields. Maleopimaric and citraconopimaric acid 4-biphenylamides were first synthesized by the reaction of acid chlorides of these acids and 4-aminobiphenyl in yields of 91.3-94.8 %. It was established that the obtained substances are optically active and the specific rotation ([α]D) of the synthesized compounds is -45.0° ÷ -118.2°. It has been shown that the chiral LC phase is formed once the obtained additives (amides and azomethines of maleopimaric acid) are introduced into the nematic liquid crystal matrix (MLC 6809-000, Merck). The helical twisting power of the studied compounds reaches 12.4 pm-1. The data obtained can be applied in the development of new industrial chiral LC compositions for use in the electronic and LC industry, e.g. TN LCD fabrication.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>малеопимаровая кислота</kwd><kwd>цитраконопимаровая кислота</kwd><kwd>амид</kwd><kwd>аминоамид</kwd><kwd>азометин</kwd><kwd>жидкий кристалл</kwd><kwd>хиральный допант</kwd></kwd-group><kwd-group xml:lang="en"><kwd>maleopimaric acid</kwd><kwd>citraconopimaric acid</kwd><kwd>amide</kwd><kwd>aminoamide</kwd><kwd>azomethine</kwd><kwd>liquid crystal</kwd><kwd>chiral dopant</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">Chirality in Liquid Crystals / Ed. H.-S. Kitzerow, C. Bahr. - New York: Springer-Verlag, 2001. - 501 p.</mixed-citation><mixed-citation xml:lang="en">Kitzerow H.-S., Bahr C. (eds.) Chirality in Liquid Crystals. 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