Journal
SYNTHESIS-STUTTGART
Volume 45, Issue 10, Pages 1373-1379Publisher
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0032-1316872
Keywords
alkynes; copper; heterogeneous catalysis; iron; supported catalysis; coupling; furans
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Funding
- Spanish Ministerio de Economia y Competitividad (M.E.C) [Consolider Ingenio 2010 CSD2007-00006, CTQ2011-24151]
- Generalitat Valenciana (G.V) (FEDER) [Prometeo 2009/03]
- M.E.C. (FPI program)
- G.V., (PROMETEO program)
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Copper-impregnated magnetite is a versatile heterogeneous catalytic system for the synthesis of 1,3-diynes by the homocoupling of terminal alkynes. This catalyst does not require the use of pressurized oxygen as the oxidant and it does not need a solvent or harsh conditions to give the expected products. Moreover, the catalyst can be removed from the reaction medium simply by using a magnet. The reaction occurs at the lowest copper loading reported for any heterogeneous catalyst.
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