Commercial gold(III) complex supported on functionalized carbon materials as catalyst for cyclohexane hydrocarboxylation

Commercial gold(III) complex supported on functionalized carbon materials as catalyst for cyclohexane hydrocarboxylation

Detaylı Bibliyografya
Parent link:Catalysis Today
Vol. 357.— 2020.— [P. 39-45]
Müşterek Yazar: Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий (ИШХБМТ)
Diğer Yazarlar: Pakrieva E. G. Ekaterina Germanovna, Ribeiro A. P. C. Ana, Martins L. M.D.R.S. Luнsa, Matias I. A.S. Inкs, Carabineiro S. A.C. Sonia, Kolobova E. N. Ekaterina Nikolaevna, Pombeiro A. J.L. P Armando, Figueiredo J. L. Jose, Pestryakov A. N. Aleksey Nikolaevich
Özet:Title screen
The commercial dichloro(2-pyridinecarboxylato)gold(III) complex (1), anchored on different carbon materials, is reported for the first time as a catalyst in the cyclohexane hydrocarboxylation to cyclohexanecarboxylic acid. The reaction was carried out in the presence of CO and water, peroxodisulfate, at ca. 50?°C, with 1 in solution and anchored on carbon nanotubes, carbon xerogel or activated carbon, with three different surface chemistries: original forms (CNT, CX or AC, respectively), oxidized with HNO3 (-ox) or oxidized with HNO3 and subsequently treated with NaOH (-ox-Na). 1@CNT-ox-Na was the best catalyst, yielding up to 78% of cyclohexanecarboxylic with a selectivity of 99%. Recycling studies showed that the catalyst was stable up to 4 cycles, the first decrease (11%) on the hydrocarboxylation yield being observed on the 5th cycle. No leaching of gold was found into the solution. The hydrocarboxylation of other cycloalkanes (cyclopentane, cycloheptane and cyclooctane) was also tested in the best conditions found for cyclohexane, but the respective carboxylic acids were obtained in considerably lower yields, which can be explained by different stabilities of cycloalkyl radicals.
Режим доступа: по договору с организацией-держателем ресурса
Dil:İngilizce
Baskı/Yayın Bilgisi: 2020
Konular:
электронный ресурс
труды учёных ТПУ
dichloro(2-pyridinecarboxylato)gold(III) complex
cyclohexane hydrocarboxylationC?H activation
carbon materials functionalization
cyclohexanecarboxylic acid
циклогексан
углеродные материалы
Online Erişim:https://doi.org/10.1016/j.cattod.2019.05.050
Materyal Türü: Elektronik Kitap Bölümü
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=660508

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