Oxidations of amines with molecular oxygen using bifunctional gold–titania catalysts

Søren Kegnæs Klitgaard, Kresten Egeblad, Uffe Vie Mentzel, Andrey Popov, Thomas Jensen, Esben Taarning, Inger Staunstrup Nielsen, Claus H. Christensen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Over the past decades it has become clear that supported gold nanoparticles are surprisingly active and selective catalysts for several green oxidation reactions of oxygen-containing hydrocarbons using molecular oxygen as the stoichiometric oxidant. We here report that bifunctional gold–titania catalysts can be employed to facilitate the oxidation of amines into amides with high selectivity. Furthermore, we report that pure titania is in fact itself a catalyst for the oxidation of amines with molecular oxygen under very mild conditions. We demonstrate that these new methodologies open up for two new and environmentally benign routes to caprolactam and cyclohexanone oxime, both of which are precursors for nylon-6.
Original languageEnglish
JournalGreen Chemistry
Volume10
Issue number4
Pages (from-to)419-423
ISSN1463-9262
DOIs
Publication statusPublished - 2008

Cite this

Klitgaard, S. K., Egeblad, K., Mentzel, U. V., Popov, A., Jensen, T., Taarning, E., ... Christensen, C. H. (2008). Oxidations of amines with molecular oxygen using bifunctional gold–titania catalysts. Green Chemistry, 10(4), 419-423. https://doi.org/10.1039/b714232c
Klitgaard, Søren Kegnæs ; Egeblad, Kresten ; Mentzel, Uffe Vie ; Popov, Andrey ; Jensen, Thomas ; Taarning, Esben ; Nielsen, Inger Staunstrup ; Christensen, Claus H. / Oxidations of amines with molecular oxygen using bifunctional gold–titania catalysts. In: Green Chemistry. 2008 ; Vol. 10, No. 4. pp. 419-423.
@article{07515e406f3f485a9fd87cff79873004,
title = "Oxidations of amines with molecular oxygen using bifunctional gold–titania catalysts",
abstract = "Over the past decades it has become clear that supported gold nanoparticles are surprisingly active and selective catalysts for several green oxidation reactions of oxygen-containing hydrocarbons using molecular oxygen as the stoichiometric oxidant. We here report that bifunctional gold–titania catalysts can be employed to facilitate the oxidation of amines into amides with high selectivity. Furthermore, we report that pure titania is in fact itself a catalyst for the oxidation of amines with molecular oxygen under very mild conditions. We demonstrate that these new methodologies open up for two new and environmentally benign routes to caprolactam and cyclohexanone oxime, both of which are precursors for nylon-6.",
author = "Klitgaard, {S{\o}ren Kegn{\ae}s} and Kresten Egeblad and Mentzel, {Uffe Vie} and Andrey Popov and Thomas Jensen and Esben Taarning and Nielsen, {Inger Staunstrup} and Christensen, {Claus H.}",
year = "2008",
doi = "10.1039/b714232c",
language = "English",
volume = "10",
pages = "419--423",
journal = "Green Chemistry",
issn = "1463-9262",
publisher = "Royal Society of Chemistry",
number = "4",

}

Klitgaard, SK, Egeblad, K, Mentzel, UV, Popov, A, Jensen, T, Taarning, E, Nielsen, IS & Christensen, CH 2008, 'Oxidations of amines with molecular oxygen using bifunctional gold–titania catalysts', Green Chemistry, vol. 10, no. 4, pp. 419-423. https://doi.org/10.1039/b714232c

Oxidations of amines with molecular oxygen using bifunctional gold–titania catalysts. / Klitgaard, Søren Kegnæs; Egeblad, Kresten; Mentzel, Uffe Vie; Popov, Andrey; Jensen, Thomas; Taarning, Esben; Nielsen, Inger Staunstrup; Christensen, Claus H.

In: Green Chemistry, Vol. 10, No. 4, 2008, p. 419-423.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Oxidations of amines with molecular oxygen using bifunctional gold–titania catalysts

AU - Klitgaard, Søren Kegnæs

AU - Egeblad, Kresten

AU - Mentzel, Uffe Vie

AU - Popov, Andrey

AU - Jensen, Thomas

AU - Taarning, Esben

AU - Nielsen, Inger Staunstrup

AU - Christensen, Claus H.

PY - 2008

Y1 - 2008

N2 - Over the past decades it has become clear that supported gold nanoparticles are surprisingly active and selective catalysts for several green oxidation reactions of oxygen-containing hydrocarbons using molecular oxygen as the stoichiometric oxidant. We here report that bifunctional gold–titania catalysts can be employed to facilitate the oxidation of amines into amides with high selectivity. Furthermore, we report that pure titania is in fact itself a catalyst for the oxidation of amines with molecular oxygen under very mild conditions. We demonstrate that these new methodologies open up for two new and environmentally benign routes to caprolactam and cyclohexanone oxime, both of which are precursors for nylon-6.

AB - Over the past decades it has become clear that supported gold nanoparticles are surprisingly active and selective catalysts for several green oxidation reactions of oxygen-containing hydrocarbons using molecular oxygen as the stoichiometric oxidant. We here report that bifunctional gold–titania catalysts can be employed to facilitate the oxidation of amines into amides with high selectivity. Furthermore, we report that pure titania is in fact itself a catalyst for the oxidation of amines with molecular oxygen under very mild conditions. We demonstrate that these new methodologies open up for two new and environmentally benign routes to caprolactam and cyclohexanone oxime, both of which are precursors for nylon-6.

U2 - 10.1039/b714232c

DO - 10.1039/b714232c

M3 - Journal article

VL - 10

SP - 419

EP - 423

JO - Green Chemistry

JF - Green Chemistry

SN - 1463-9262

IS - 4

ER -