Selective Liquid-Phase Hydrogenation of a Nitro Group in Substituted Nitrobenzenes over Au/Al2O3 Catalyst in a Packed-Bed Flow Reactor Научная публикация
| Журнал |
ChemPlusChem
ISSN: 2192-6506 |
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| Вых. Данные | Год: 2015, Том: 80, Номер: 12, Страницы: 1741 - 1749 Страниц : 9 DOI: 10.1002/cplu.201500310 | ||||
| Ключевые слова | gold, hydrogenation, nitrobenzenes, supported catalysts, three-phase flow reactor | ||||
| Авторы |
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| Организации |
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Информация о финансировании (2)
| 1 | Совет по грантам Президента Российской Федерации | НШ-5340.2014.3 |
| 2 | Российский фонд фундаментальных исследований | 13-03-12178 |
Реферат:
A series of substituted nitrobenzenes with the general formula XC6H4NO2 (X=Cl, CH=CH2, or C(O)CH3) dissolved in toluenewere reduced with hydrogen over the 1.9% Au/Al2O3 catalyst at 60–1108C and 10–20 bar in a three-phase packed-bed reactor operating in up-flow mode. Under these conditions, hydrogenation of isomeric ClC6H4NO2 gives exclusively chloroanilines. Hydrogenation of 3-CH2CHC6H4NO2 and 4-CH3C(O)C6H4NO2 leads to the formation of
3-CH2CHC6H4NH2 and 4-CH3C(O)C6H4NH2 with selectivities of up to 93 and 97% at substrate conversions of 98 and 100%, respectively. Smooth catalyst deactivation was observed regardless of which substituted nitrobenzene was taken for hydrogenation. According to the results obtained by temperature-programmed oxidation of the spent catalyst, a carbonaceous deposit formed that might block the catalyst surface. Almost complete regeneration of
the supported gold catalyst with retention of its high selectivity to hydrogenation of a nitro group was achieved in a flow of air at temperatures up to 400 8C to eliminate carbonaceous deposits.
Библиографическая ссылка:
Nuzhdin A.L.
, Moroz B.L.
, Bukhtiyarova G.A.
, Reshetnikov S.I.
, Pyrjaev P.A.
, Aleksandrov P.V.
, Bukhtiyarov V.I.
Selective Liquid-Phase Hydrogenation of a Nitro Group in Substituted Nitrobenzenes over Au/Al2O3 Catalyst in a Packed-Bed Flow Reactor
ChemPlusChem. 2015. V.80. N12. P.1741 - 1749. DOI: 10.1002/cplu.201500310 WOS Scopus РИНЦ CAPlus PMID OpenAlex
Selective Liquid-Phase Hydrogenation of a Nitro Group in Substituted Nitrobenzenes over Au/Al2O3 Catalyst in a Packed-Bed Flow Reactor
ChemPlusChem. 2015. V.80. N12. P.1741 - 1749. DOI: 10.1002/cplu.201500310 WOS Scopus РИНЦ CAPlus PMID OpenAlex
Даты:
| Поступила в редакцию: | 9 июл. 2015 г. |
| Опубликована online: | 6 авг. 2015 г. |
| Опубликована в печати: | 2 дек. 2015 г. |
Идентификаторы БД:
| Web of science: | WOS:000368592800007 |
| Scopus: | 2-s2.0-84955188449 |
| РИНЦ: | 26662804 |
| Chemical Abstracts: | 2015:1406784 |
| PMID (PubMed): | 31973320 |
| OpenAlex: | W2159491858 |