Effect of Different Carboxylic Acids on the Aromatic Hydroxylation with H2O2 in the Presence of an Iron Aminopyridine Complex Научная публикация
Журнал |
Journal of Organometallic Chemistry
ISSN: 0022-328X |
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Вых. Данные | Год: 2018, Том: 871, Страницы: 130-134 Страниц : 5 DOI: 10.1016/j.jorganchem.2018.07.016 | ||||
Ключевые слова | Aromatic oxidation; Electrophilic substitution; Hydrogen peroxide; Intermediates; Iron; Oxidation | ||||
Авторы |
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Организации |
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Информация о финансировании (2)
1 | Федеральное агентство научных организаций России | 0303-2016-0005 |
2 | Российский фонд фундаментальных исследований | 17-03-00991 |
Реферат:
In this contribution, the effect of the structure of the catalytic additive – carboxylic acid – on the catalytic performance of the iron based catalyst [(PDP)Fe(OTf)2], 2 (PDP = N,N′-bis(2-pyridylmethyl)-(S,S)-2,2′-bipyrrolidine) in the selective aromatic oxidation of alkylbenzenes with H2O2 is presented. Eight (linear and branched) carboxylic acids have been tested; in the presence of 2-ethylhexanoic acid, the system [(PDP)Fe(OTf)2]/RCOOH/H2O2 has demonstrated the highest substrate conversion and the highest selectivity for oxygen incorporation into the aromatic ring (up to > 99%) at the same time. Low-temperature EPR spectroscopic study of the system [(PDP)Fe(OTf)2]/2-ethylhexanoic acid/H2O2 witness the presence of the low-spin perferryl intermediate 2aEHA with small g-factor anisotropy (g1 = 2.069, g2 = 2.007, g3 = 1.963), which directly reacts with benzene at −80 °C with the rate constant k2 = 0.6 M−1s−1, and with toluene with k2 > 1 M−1s−1, thus giving evidence for its key role in the selective oxygenation of aromatic substrates.
Библиографическая ссылка:
Tkachenko N.V.
, Lyakin O.Y.
, Zima A.M.
, Talsi E.P.
, Bryliakov K.P.
Effect of Different Carboxylic Acids on the Aromatic Hydroxylation with H2O2 in the Presence of an Iron Aminopyridine Complex
Journal of Organometallic Chemistry. 2018. V.871. P.130-134. DOI: 10.1016/j.jorganchem.2018.07.016 WOS Scopus РИНЦ
Effect of Different Carboxylic Acids on the Aromatic Hydroxylation with H2O2 in the Presence of an Iron Aminopyridine Complex
Journal of Organometallic Chemistry. 2018. V.871. P.130-134. DOI: 10.1016/j.jorganchem.2018.07.016 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 20 июн. 2018 г. |
Принята к публикации: | 12 июл. 2018 г. |
Опубликована online: | 17 июл. 2018 г. |
Опубликована в печати: | 1 сент. 2018 г. |
Идентификаторы БД:
Web of science | WOS:000440978600017 |
Scopus | 2-s2.0-85049985652 |
РИНЦ | 35735795 |
Chemical Abstracts | 2018:1345879 |
Chemical Abstracts (print) | 169:221619 |
OpenAlex | W2883431903 |