Applied Catalysis A: General p. 1 - 9 (2014)
Update date:2022-08-17
Topics:
Aronica, Laura Antonella
Caporusso, Anna Maria
Tuci, Giulia
Evangelisti, Claudio
Manzoli, Maela
Botavina, Maria
Martra, Gianmario
Palladium nanoparticles supported on two Smopex commercial metal scavengers (1% w/w) have been tested in the carbonylative Sonogashira reactions of aryl iodides with phenylacetylene. Their catalytic activity has been compared with those of more common catalysts (Pd/C, Pd/γ-Al 2O3). Pd/Smopex-234 resulted especially effective in the synthesis of alkynyl ketones even working with a low amount of palladium (0.2-0.5 mol%). Preliminary heterogeneity tests (i.e. hot filtration test, Pd leaching and recycle of the catalyst) have been performed in order to evaluate the catalytic behaviour of this system. The obtained results seem to indicate that Pd/Smopex-234 could act as a truly heterogeneous catalyst.
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