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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">Doklady Chemistry</journal-id><journal-title-group><journal-title xml:lang="en">Doklady Chemistry</journal-title><trans-title-group xml:lang="ru"><trans-title>Доклады Российской академии наук. Химия, науки о материалах</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2686-9535</issn><issn publication-format="electronic">3034-5111</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">683263</article-id><article-id pub-id-type="doi">10.31857/S2686953525010026</article-id><article-id pub-id-type="edn">AWUTZT</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CHEMISTRY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ХИМИЯ</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">Selective hydrogenation of carvone on Pd/Al<sub>2</sub>O<sub>3</sub> under mild reaction conditions</article-title><trans-title-group xml:lang="ru"><trans-title>Образование карвеола в ходе гидрирования карвона на Pd/Al<sub>2</sub>O<sub>3</sub> в мягких условиях</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Osadchaya</surname><given-names>T. Yu.</given-names></name><name xml:lang="ru"><surname>Осадчая</surname><given-names>Т. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>osadchayatyu@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Afineevskii</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Афинеевский</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>osadchayatyu@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Prozorov</surname><given-names>D. A.</given-names></name><name xml:lang="ru"><surname>Прозоров</surname><given-names>Д. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>osadchayatyu@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Cardenas-Lizana</surname><given-names>F.</given-names></name><name xml:lang="ru"><surname>Карденас-Лизана</surname><given-names>Ф.</given-names></name></name-alternatives><address><country country="GB">United Kingdom</country></address><bio xml:lang="en"><p>Institute of Mechanical, Process and Energy Engineering (IMPEE), School of Engineering and Physical Sciences (EPS)</p></bio><bio xml:lang="ru"><p>Институт механики, технологических процессов и энергетики</p></bio><email>osadchayatyu@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Ivanovo State University of Chemistry and Technology</institution></aff><aff><institution xml:lang="ru">Ивановский государственный химико-технологический университет</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Heriot-Watt University</institution></aff><aff><institution xml:lang="ru">Университет Хериот-Уотта</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-02-15" publication-format="electronic"><day>15</day><month>02</month><year>2025</year></pub-date><volume>520</volume><issue>1</issue><fpage>12</fpage><lpage>22</lpage><history><date date-type="received" iso-8601-date="2025-06-07"><day>07</day><month>06</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></permissions><self-uri xlink:href="https://journals.eco-vector.com/2686-9535/article/view/683263">https://journals.eco-vector.com/2686-9535/article/view/683263</self-uri><abstract xml:lang="en"><p>Liquid-phase hydrogenation of carvone to carveol using Pd/Al<sub>2</sub>O<sub>3</sub> catalyst under mild reaction conditions was studied. Carvone having three different functional groups, is a complex object for selective hydrogenation, since <italic>endo</italic>- and <italic>exo</italic>- &gt;C=C&lt; bonds and carbonyl group have different reactivity. The aim of the study was to increase the selectivity for carveol, an important industrial product in the food, perfumery and pharmaceutical industries. Optimum conditions for carvone hydrogenation to carveol were established: toluene solvent, Pd/Al<sub>2</sub>O<sub>3</sub> catalyst and temperatures ≥323 K. It was shown that the selectivity for carveol under mild conditions reaches 20%. The results demonstrate the potential of using Pd/Al<sub>2</sub>O<sub>3</sub> for efficient and selective hydrogenation of carvone in industry. This study can form the basis for the development of new technologies for the production of carveol with high selectivity and yield, which is important for improving the efficiency and sustainability of chemical processes in various industries.</p></abstract><trans-abstract xml:lang="ru"><p>Исследовано жидкофазное гидрирование карвона до карвеола с использованием катализатора Pd/Al<sub>2</sub>O<sub>3</sub> в мягких условиях протекания реакции. Карвон, обладающий тремя различными функциональными группами, является сложным объектом для селективного гидрирования, <italic>эндо</italic>- и <italic>экзо</italic>- &gt;С=С&lt;-связи и карбонильная группа обладают различной реакционной способностью. Целью исследования являлось увеличение селективности по карвеолу – важному промышленному продукту пищевой, парфюмерной и фармацевтической отраслей. Установлены оптимальные условия гидрирования карвона до карвеола – растворитель толуол и температура 323 К. Показано, что селективность по карвеолу в мягких условиях достигает 20%. Результаты исследования демонстрируют потенциал применения катализатора Pd/Al<sub>2</sub>O<sub>3</sub> для эффективного и селективного гидрирования карвона в промышленности. Настоящее исследование может стать основой для разработки новых технологий получения карвеола с высокими селективностью и выходом, что имеет важное значение для повышения эффективности и устойчивости химических процессов в различных отраслях промышленности.</p></trans-abstract><kwd-group xml:lang="en"><kwd>supported catalysts</kwd><kwd>catalytic activity</kwd><kwd>selectivity</kwd><kwd>supported palladium catalysts</kwd><kwd>carvone</kwd><kwd>carvacrol</kwd><kwd>carvomentone</kwd><kwd>carvatanacetone</kwd><kwd>carveol</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>каталитическая активность</kwd><kwd>селективность</kwd><kwd>нанесенные палладиевые катализаторы</kwd><kwd>карвон</kwd><kwd>карвакрол</kwd><kwd>карвоментон</kwd><kwd>карватанацетон</kwd><kwd>карвеол</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Правительство Российской Федерации</institution></institution-wrap><institution-wrap><institution xml:lang="en">Government of the Russian Federation</institution></institution-wrap></funding-source></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Bhatia S.P., McGinty D., Letizia C.S., Api A.M. // Food Chem. 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