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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">catal</journal-id><journal-title-group><journal-title xml:lang="ru">Катализ в промышленности</journal-title><trans-title-group xml:lang="en"><trans-title>Kataliz v promyshlennosti</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1816-0387</issn><issn pub-type="epub">2413-6476</issn><publisher><publisher-name>LLC "KALVIS"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18412/1816-0387-2023-4-33</article-id><article-id custom-type="elpub" pub-id-type="custom">catal-958</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>КАТАЛИЗ В ХИМИЧЕСКОЙ И НЕФТЕХИМИЧЕСКОЙ ПРОМЫШЛЕННОСТИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CATALYSIS IN CHEMICAL AND PETROCHEMICAL INDUSTRY</subject></subj-group></article-categories><title-group><article-title>Экологически безопасная конденсация Кнёвенагеля замещенных бензальдегидов с этилцианоацетатом на катализаторе Ru/бентонит</article-title><trans-title-group xml:lang="en"><trans-title>Ru-bentonite catalyzed green Knoevenagel condensation of substituted benzaldehydes with ethyl cyanoacetate</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>Borah</surname><given-names>Debasis</given-names></name><name name-style="western" xml:lang="en"><surname>Borah</surname><given-names>Debasis</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.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>Brahma</surname><given-names>Deepmoni</given-names></name><name name-style="western" xml:lang="en"><surname>Brahma</surname><given-names>Deepmoni</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.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>Basak</surname><given-names>Dipanwita</given-names></name><name name-style="western" xml:lang="en"><surname>Basak</surname><given-names>Dipanwita</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.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>Saikia</surname><given-names>Hemaprobha</given-names></name><name name-style="western" xml:lang="en"><surname>Saikia</surname><given-names>Hemaprobha</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Department of Chemistry, Bodoland University, Kokrajhar, BTR, Assam</institution><country>Индия</country></aff><aff xml:lang="en"><institution>Department of Chemistry, Bodoland University, Kokrajhar, BTR, Assam</institution><country>India</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>08</day><month>09</month><year>2023</year></pub-date><volume>23</volume><issue>4</issue><fpage>33</fpage><lpage>33</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; LLC "KALVIS", 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">LLC "KALVIS"</copyright-holder><copyright-holder xml:lang="en">LLC "KALVIS"</copyright-holder><license xlink:href="https://www.catalysis-kalvis.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.catalysis-kalvis.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.catalysis-kalvis.ru/jour/article/view/958">https://www.catalysis-kalvis.ru/jour/article/view/958</self-uri><abstract><p>Полностью статья будет опубликована в английской версии журнала «Catalysis in Industry» № 1, 2024 г.</p><p>Чтобы разработать модифицированную рутением бентонитовую глину для использования при конденсации Кнёвенагеля в качестве гетерогенного основного катализатора, представляющего собой альтернативу опасным для окружающей среды основным катализаторам, таким как пиридин, пиперидин и т.п., мы очищаем природную бентонитовую глину и вводим катион Ru3+ в ее промежуточные слои, что позволяет улучшить пористость и увеличить удельную поверхность этого материала. Очищенный бентонит и Ru/бентонит охарактеризованы с использованием инфракрасной Фурье-спектроскопии (FTIR), порошковой рентгеновской дифракции (PXRD), просвечивающей электронной микроскопии высокого разрешения (HRTEM), сканирующей электронной микроскопии (SEM), энергорассеивающей рентгеновской спектроскопии (EDS), термогравиметрического анализа (TGA), а также определена удельная поверхность методом Брунауэра – Эмметта – Теллера (BET). Проведена активация этих глин в основной среде и предпринято сравнительное исследование их в роли пригодных для повторного использования гетерогенных катализаторов конденсации Кнёвенагеля в присутствии воды в качестве растворителя для химического превращения 2,4-дихлорбензальдегида и 4-гидроксибензальдегида с этилцианоацетатом в соответствующие им α,β-ненасыщенные кислоты. Продукты реакции охарактеризованы методами FTIR и ядерного магнитного резонанса (1H NMR и 13C NMR). К ключевым особенностям этой реакции относятся мягкие условия протекания, отсутствие опасных химических веществ, используемых при классической конденсации Кнёвенагеля, возможность повторного использования катализатора и высокие значения выхода продуктов.</p></abstract><trans-abstract xml:lang="en"><p>The full-text of the article will be published in the English version of the journal "Catalysis in Industry" No. 1, 2024.</p><p>To develop Ru-incorporated bentonite clay as a heterogeneous base catalyst for use in Knoevenagel condensation as an alternative to hazardous base catalysts like pyridine, piperidine, etc., we purify the naturally occurring bentonite clay and Ru3+ cation incorporated into its interlayers of bentonite clay to improve its porosity and to increase the surface area of bentonite clay. Purified bentonite and Ru-bentonite were characterized by FTIR, PXRD, HRTEM, SEM &amp; EDS, BET surface area analysis, and TGA. Base activation was done to these clays and a comparative study of these clays as recyclable heterogeneous catalysts for Knoevenagel Condensation was undertaken in water as a solvent for the chemical transformation of 2,4-dichlorobenzaldehyde and 4-hydroxybenzaldehyde with ethyl cyanoacetate into their corresponding α,β-unsaturated acids. The products were characterized by FTIR, 1H NMR, and 13C NMR analyses. The essential key points of this reaction are mild reaction conditions, absence of hazardous chemicals as used in classical Knoevenagel condensation, reusability of the catalyst, and high yield percentage of the products.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>бентонит</kwd><kwd>модифицированный бентонит</kwd><kwd>конденсация Кнёвенагеля</kwd></kwd-group><kwd-group xml:lang="en"><kwd>bentonite</kwd><kwd>modified bentonite</kwd><kwd>Knoevenagel condensation</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">Christidis G.E., Huff W.D. Geological aspects and genesis of bentonites // Elements. 2009. Vol. 5. P. 93–98.</mixed-citation><mixed-citation xml:lang="en">Christidis G.E., Huff W.D. Geological aspects and genesis of bentonites // Elements. 2009. Vol. 5. P. 93–98.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Masindi V. // Journal of Water Reuse and Desalination. 2017. Vol. 7, № 3. P. 338–352.</mixed-citation><mixed-citation xml:lang="en">Masindi V. // Journal of Water Reuse and Desalination. 2017. Vol. 7, № 3. P. 338–352.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Paluszkiewicz C., Holtzer M.,Bobrowski A. // Journal of molecular structure. 2008. Vol. 880, № 1-3. P. 109–114.</mixed-citation><mixed-citation xml:lang="en">Paluszkiewicz C., Holtzer M.,Bobrowski A. // Journal of molecular structure. 2008. Vol. 880, № 1-3. P. 109–114.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Menezes R.R., Marques L.N., Campos L.A., Ferreira H.S., Santana L.N.L., Neves G.A. // Applied Clay Science. 2010. Vol. 49. P. 13–20.</mixed-citation><mixed-citation xml:lang="en">Menezes R.R., Marques L.N., Campos L.A., Ferreira H.S., Santana L.N.L., Neves G.A. // Applied Clay Science. 2010. Vol. 49. P. 13–20.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Boyes R.G.H. // Proceedings of the Institution of Civil Engineers. 1972. Vol. 52, № 1. P. 25–37.</mixed-citation><mixed-citation xml:lang="en">Boyes R.G.H. // Proceedings of the Institution of Civil Engineers. 1972. Vol. 52, № 1. P. 25–37.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Sulistiyanto B., Sumarsih S. Characteristics of immuno-organ development of native chickens fed rations containing hatchery wastes processed with different level of bentonite // 1st International Conference of Animal Science and Technology (ICAST). Series: Earth and Environmental Science. 2019. Vol. 247. 012034</mixed-citation><mixed-citation xml:lang="en">Sulistiyanto B., Sumarsih S. Characteristics of immuno-organ development of native chickens fed rations containing hatchery wastes processed with different level of bentonite // 1st International Conference of Animal Science and Technology (ICAST). Series: Earth and Environmental Science. 2019. Vol. 247. 012034</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Syafalni S., Ismail Abustan, Siti Nor Farhana Zakaria, Mohd Hafiz Zawawi, Rafini Abd Rahim // Water Science and Technology: Water Supply. 2012. Vol. 12, № 4. P. 480–488.</mixed-citation><mixed-citation xml:lang="en">Syafalni S., Ismail Abustan, Siti Nor Farhana Zakaria, Mohd Hafiz Zawawi, Rafini Abd Rahim // Water Science and Technology: Water Supply. 2012. Vol. 12, № 4. P. 480–488.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Pusch R. // Canadian Geotechnical Journal. 1982. Vol. 19, № 3. P. 381–387.</mixed-citation><mixed-citation xml:lang="en">Pusch R. // Canadian Geotechnical Journal. 1982. Vol. 19, № 3. P. 381–387.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Hebbar R.S., Isloor A.M., Ismail A.F. // RSC Advances. 2014. Vol. 4. P. 47240–47248.</mixed-citation><mixed-citation xml:lang="en">Hebbar R.S., Isloor A.M., Ismail A.F. // RSC Advances. 2014. Vol. 4. P. 47240–47248.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Pusch R. // Clay Minerals. 1992. Vol. 27. P. 353–361.</mixed-citation><mixed-citation xml:lang="en">Pusch R. // Clay Minerals. 1992. Vol. 27. P. 353–361.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Qurat Ul Ain, Hanbing Zhang, Muhammad Yaseen, Usman Rasheed, Kun Liu, Sidra Subhan, Zhangfa Tong // Journal of Cleaner Production. 2020. Vol. 247. Article 119088.</mixed-citation><mixed-citation xml:lang="en">Qurat Ul Ain, Hanbing Zhang, Muhammad Yaseen, Usman Rasheed, Kun Liu, Sidra Subhan, Zhangfa Tong // Journal of Cleaner Production. 2020. Vol. 247. Article 119088.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Wardencki W., Curyło J., Namieśnik J. // Polish Journal of Environmental Studies. 2005. Vol. 14, № 4. P. 389–395.</mixed-citation><mixed-citation xml:lang="en">Wardencki W., Curyło J., Namieśnik J. // Polish Journal of Environmental Studies. 2005. Vol. 14, № 4. P. 389–395.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Chaturvedi A.K., Yadava K.P., Pathak K.C., Singh V.N. // Water, Air &amp; Soil Pollution. 1990 .Vol. 49, P. 51–61.</mixed-citation><mixed-citation xml:lang="en">Chaturvedi A.K., Yadava K.P., Pathak K.C., Singh V.N. // Water, Air &amp; Soil Pollution. 1990 .Vol. 49, P. 51–61.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Brady N. Soil Colloids: Their Nature and Practical Significance // The Nature and Properties of Soils. 10th edition. New York : Macmillan Publishing Co., 1990. P. 177–212.</mixed-citation><mixed-citation xml:lang="en">Brady N. Soil Colloids: Their Nature and Practical Significance // The Nature and Properties of Soils. 10th edition. New York : Macmillan Publishing Co., 1990. P. 177–212.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Fillmore Freeman // Chemical Reviews. 1980. Vol. 80, № 4. P. 329–350.</mixed-citation><mixed-citation xml:lang="en">Fillmore Freeman // Chemical Reviews. 1980. Vol. 80, № 4. P. 329–350.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Tietze L.F., Rackelmann N. // Pure &amp; Applied Chemistry. 2004. Vol. 76, № 11. P. 1967–1983.</mixed-citation><mixed-citation xml:lang="en">Tietze L.F., Rackelmann N. // Pure &amp; Applied Chemistry. 2004. Vol. 76, № 11. P. 1967–1983.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Fan Ouyang, Yan Zhou, Zhang-Min Li, Na Hu, Duan-Jian Tao // Korean Journal of Chemical Engineering. 2014. Vol. 31. P. 1377–1383.</mixed-citation><mixed-citation xml:lang="en">Fan Ouyang, Yan Zhou, Zhang-Min Li, Na Hu, Duan-Jian Tao // Korean Journal of Chemical Engineering. 2014. Vol. 31. P. 1377–1383.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Catarino S., Madeira M., Monteiro F., Rocha F., Curvelo-Garcia A.S., Bruno de Sousa R. // Journal of Agricultural and Food Chemistry. 2008. Vol. 56, № 1. P. 158–165.</mixed-citation><mixed-citation xml:lang="en">Catarino S., Madeira M., Monteiro F., Rocha F., Curvelo-Garcia A.S., Bruno de Sousa R. // Journal of Agricultural and Food Chemistry. 2008. Vol. 56, № 1. P. 158–165.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Gül A., Sirkeci A.A., Boylu F., Güldan G., Burat F. // Physicochemical Problems of Mineral Processing. 2015. Vol. 51, № 1. P. 23–36.</mixed-citation><mixed-citation xml:lang="en">Gül A., Sirkeci A.A., Boylu F., Güldan G., Burat F. // Physicochemical Problems of Mineral Processing. 2015. Vol. 51, № 1. P. 23–36.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Carretero M.I. // Applied Clay Science. 2002. Vol. 21, № 3-4. P. 155–163.</mixed-citation><mixed-citation xml:lang="en">Carretero M.I. // Applied Clay Science. 2002. Vol. 21, № 3-4. P. 155–163.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Farmer V.C., Russell J.D. // Spectrochimica Acta. 1964. Vol. 20. P. 1149–1173.</mixed-citation><mixed-citation xml:lang="en">Farmer V.C., Russell J.D. // Spectrochimica Acta. 1964. Vol. 20. P. 1149–1173.</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Gupta A., Amitabh V., Kumari B., Mishra B. // Research Journal of Pharmaceutical, Biological and Chemical Sciences. 2013. Vol. 4. P. 360–369.</mixed-citation><mixed-citation xml:lang="en">Gupta A., Amitabh V., Kumari B., Mishra B. // Research Journal of Pharmaceutical, Biological and Chemical Sciences. 2013. Vol. 4. P. 360–369.</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Munawar Khalil, Badrrul Mohamed Jan, Abdul Aziz Abdul Rahman // Engineering and Technology. 2011. Vol. 4. P. 53.</mixed-citation><mixed-citation xml:lang="en">Munawar Khalil, Badrrul Mohamed Jan, Abdul Aziz Abdul Rahman // Engineering and Technology. 2011. Vol. 4. P. 53.</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Vlasova M., Dominguez-Patiño G., Kakazey N., Dominguez-Patiño M., Juarez-Romero D., Enriquez Méndez Y. // Science of Sintering. 2003. Vol. 35. P. 155–166.</mixed-citation><mixed-citation xml:lang="en">Vlasova M., Dominguez-Patiño G., Kakazey N., Dominguez-Patiño M., Juarez-Romero D., Enriquez Méndez Y. // Science of Sintering. 2003. Vol. 35. P. 155–166.</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Li G., Peacor D.R., Coombs D.S. // Clays and Clay Minerals. 1997. Vol. 45. P. 54–67.</mixed-citation><mixed-citation xml:lang="en">Li G., Peacor D.R., Coombs D.S. // Clays and Clay Minerals. 1997. Vol. 45. P. 54–67.</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Muhammad Naswir, Susila Arita, Marsi, and Salni // Journal of Clean Energy Technologies. 2013. Vol. 1, № 4. P. 313–317.</mixed-citation><mixed-citation xml:lang="en">Muhammad Naswir, Susila Arita, Marsi, and Salni // Journal of Clean Energy Technologies. 2013. Vol. 1, № 4. P. 313–317.</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Brunauer S., Deming L.S., Deming W.E., Teller E. // Journal of American Chemical Society. 1940. Vol. 62. P. 1723–1732.</mixed-citation><mixed-citation xml:lang="en">Brunauer S., Deming L.S., Deming W.E., Teller E. // Journal of American Chemical Society. 1940. Vol. 62. P. 1723–1732.</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Sarikaya Y., Önal M., Baran B., Alemdaroğlu T. // Clays and Clay Minerals. 2000. Vol. 48, № 5. P. 557–562.</mixed-citation><mixed-citation xml:lang="en">Sarikaya Y., Önal M., Baran B., Alemdaroğlu T. // Clays and Clay Minerals. 2000. Vol. 48, № 5. P. 557–562.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
