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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="other" 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">651927</article-id><article-id pub-id-type="doi">10.31857/S2686953522600829</article-id><article-id pub-id-type="edn">BCXHTV</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></subject></subj-group></article-categories><title-group><article-title xml:lang="en">UNEXPECTED EFFECT OF N-HETEROCYCLIC CARBENE ON THE CATALYTIC ACTIVITY OF PALLADIUM COMPLEX IN THE CROSS-COUPLING REACTION OF K[C<sub>6</sub>F<sub>5</sub>BF<sub>3</sub>] WITH ARYL CHLORIDES</article-title><trans-title-group xml:lang="ru"><trans-title>Неожиданное влияние N-гетероциклического карбена на каталитическую активность палладиевого комплекса в реакции кросс-сочетания K[C<sub>6</sub>F<sub>5</sub>BF<sub>3</sub>] с арилхлоридами</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Adonin</surname><given-names>N. Yu.</given-names></name><name xml:lang="ru"><surname>Адонин</surname><given-names>Н. Ю.</given-names></name></name-alternatives><email>adonin@catalysis.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shabalin</surname><given-names>A. Yu.</given-names></name><name xml:lang="ru"><surname>Шабалин</surname><given-names>А. Ю.</given-names></name></name-alternatives><email>adonin@catalysis.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Prikhod’ko</surname><given-names>S. A.</given-names></name><name xml:lang="ru"><surname>Приходько</surname><given-names>С. А.</given-names></name></name-alternatives><email>adonin@catalysis.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bardin</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Бардин</surname><given-names>В. В.</given-names></name></name-alternatives><email>adonin@catalysis.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт катализа им. Г.К. Борескова 
Сибирского отделения Российской академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Новосибирский институт органической химии 
им. Н.Н. Ворожцова Сибирского отделения 
Российской академии наук</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-11-01" publication-format="electronic"><day>01</day><month>11</month><year>2023</year></pub-date><volume>513</volume><issue>1</issue><fpage>29</fpage><lpage>33</lpage><history><date date-type="received" iso-8601-date="2025-02-02"><day>02</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Н.Ю. Адонин, А.Ю. Шабалин, С.А. Приходько, В.В. Бардин</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Н.Ю. Адонин, А.Ю. Шабалин, С.А. Приходько, В.В. Бардин</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Н.Ю. Адонин, А.Ю. Шабалин, С.А. Приходько, В.В. Бардин</copyright-holder><copyright-holder xml:lang="ru">Н.Ю. Адонин, А.Ю. Шабалин, С.А. Приходько, В.В. Бардин</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/2686-9535/article/view/651927">https://journals.eco-vector.com/2686-9535/article/view/651927</self-uri><abstract xml:lang="en"><p id="idm45257550349040">In the presence of the precursor of carbene SIMes, the yields of pentafluorobiphenyls in the palladium-catalyzed cross-coupling of potassium pentafluorophenyltrifluoroborate with aryl chlorides decrease while under the same conditions yield of 2,3,4,5,6-pentafluoro-4′-methylbiphenyl from 4-bromotoluene increases. An explanation for this phenomenon is proposed, as well as for the intensification of the side hydrodeboration reaction of the initial borate.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45257550348480">При палладий-катализируемом кросс-сочетании пентафторфенилтрифторбората калия с арилхлоридами в присутствии предшественника SIMes-карбена выходы пентафтордифенилов понижаются, тогда как в тех же условиях выход 2,3,4,5,6-пентафтор-4′-метилдифенила из 4‑бромтолуола возрастает. Предложено объяснение этому явлению, а также интенсификации побочной реакции гидродеборирования исходного бората.</p></trans-abstract><kwd-group xml:lang="en"><kwd>cross-coupling</kwd><kwd>aryl bromides</kwd><kwd>aryl chlorides</kwd><kwd>N-heterocyclic carbenes</kwd><kwd>pentafluorophenyltrifluoroborate</kwd><kwd>palladium catalyst</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>кросс-сочетание</kwd><kwd>арилбромиды</kwd><kwd>арилхлориды</kwd><kwd>N‑гетероциклические карбены</kwd><kwd>пентафторфенилтрифторборат</kwd><kwd>палладиевый катализатор</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы выражают благодарность Химическому исследовательскому центру коллективного пользования СО РАН за проведение измерений спектров 19F ЯМР.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Miyaura N. Organoboron Compounds. In: Cross-coupling reactions: A practical guide. 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