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An efficient Pt nanoparticle–ionic liquid system for the hydrodeoxygenation of bio-derived phenols under mild conditions

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Abstract

Platinum nanoparticles (NPs) were synthesized in situ in the ionic liquid (IL) [Emim]NTf2 (1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide) as well as in mixtures of [Emim]NTf2 with a second IL, Lewis acid or Brønsted acid, but in the absence of additional stabilizers. The resulting NP/IL systems catalyze the hydrodeoxygenation of a phenol under mild conditions (60 °C, 1.0 MPa H2), achieving full substrate conversion and a high deoxygenation rate (over 95%) to cyclohexane and cyclohexene. The combination of [Emim]NTf2 and [Bmim]PF6 results in the best catalytic performance. Also the transformation of other substituted phenols and dimers such as catechol, guaiacol and diphenyl ether was studied in the Pt NP/[Emim]NTf2–[Bmim]PF6 system and in most cases afforded cyclohexane in good yield.

Graphical abstract: An efficient Pt nanoparticle–ionic liquid system for the hydrodeoxygenation of bio-derived phenols under mild conditions

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Publication details

The article was received on 22 Jun 2017, accepted on 02 Oct 2017 and first published on 02 Oct 2017


Article type: Paper
DOI: 10.1039/C7GC01870C
Citation: Green Chem., 2017, Advance Article
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    An efficient Pt nanoparticle–ionic liquid system for the hydrodeoxygenation of bio-derived phenols under mild conditions

    L. Chen, C. Fink, Z. Fei, P. J. Dyson and G. Laurenczy, Green Chem., 2017, Advance Article , DOI: 10.1039/C7GC01870C

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