Homocoupling of terminal alkynes catalysed by ultrafine copper nanoparticles on titania

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Title: Homocoupling of terminal alkynes catalysed by ultrafine copper nanoparticles on titania
Authors: Alonso, Francisco | Melkonian, Taki | Moglie, Yanina | Yus, Miguel
Research Group/s: Nuevas Metodologías en Síntesis Orgánica
Center, Department or Service: Universidad de Alicante. Departamento de Química Orgánica
Keywords: Alkynes | C-C coupling | Copper | Nanoparticles | Titanium | Heterogeneous catalysis
Knowledge Area: Química Orgánica
Date Created: 2011
Issue Date: 14-Mar-2011
Publisher: Wiley-VCH Verlag GmbH & Co. KGaA
Citation: ALONSO VALDÉS, Francisco, et al. "Homocoupling of terminal alkynes catalysed by ultrafine copper nanoparticles on titania". European Journal of Organic Chemistry. Vol. 2011, Issue 13 (May 2011). ISSN 1434-193X, pp. 2524-2530
Abstract: Copper nanoparticles on titania effectively catalyse the oxidative homocoupling of terminal alkynes in the presence of piperidine as a base in tetrahydrofuran (THF) or under solvent-free conditions. A wide range of diynes have been synthesised in high yields using low catalyst loading (1 mol-% Cu). The copper catalyst (mainly as Cu2O) has been characterised by different means, is easy to prepare, can be reutilised several times, works either in air or under inert atmosphere and was shown to be superior to other commercially available copper sources.
Sponsor: This work was generously supported by the Spanish Ministerio de Ciencia e Innovación [(MICINN) (grant number CTQ2007-65218) and Consolider Ingenio (grant number 2010-CSD2007-00006)], the Generalitat Valenciana (grant no. PROMETEO/2009/039), and the Fondos Europeos para el Desarrollo Regional (FEDER).
URI: http://hdl.handle.net/10045/17286
ISSN: 1434-193X (Print) | 1099-0690 (Online)
DOI: 10.1002/ejoc.201001735
Language: eng
Type: info:eu-repo/semantics/article
Rights: The definitive version is available at www3.interscience.wiley.com
Peer Review: si
Publisher version: http://dx.doi.org/10.1002/ejoc.201001735
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