期刊
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
卷 2011, 期 13, 页码 2524-2530出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201001735
关键词
Alkynes; C-C coupling; Copper; Nanoparticles; Titanium; Heterogeneous catalysis
资金
- Spanish Ministerio de Ciencia e Innovacion [(MICINN)] [CTQ2007-65218]
- Consolider Ingenio [2010-CSD2007-00006]
- Generalitat Valenciana [PROMETEO/2009/039]
- Fondos Europeos para el Desarrollo Regional (FEDER)
- Vicerrectorado de Investigacion, Desarrollo e Innovacion of the Universidad de Alicante
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.
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