Laser-driven heterogeneous catalysis: efficient amide formation catalysed by Au/SiO2 systems
2013; Royal Society of Chemistry; Volume: 15; Issue: 8 Linguagem: Inglês
10.1039/c3gc40166a
ISSN1463-9270
AutoresAntonio Pineda, Leyre Gómez, Alina M. Balu, Víctor Sebastián, Manuel Ojeda, Manuel Arruebo, Antonio A. Romero, Jesús Santamarı́a, Rafael Luque,
Tópico(s)Chemical Synthesis and Analysis
ResumoA proof of concept of laser-assisted heterogeneously catalysed processes at room temperature using silica supported gold nanoparticles is reported. Au/SiO2 nanoparticles were laser-irradiated at 532 nm (SPR maximum absorbance) to catalyse the selected reaction, namely the production of 4-benzoylmorpholine from benzaldehyde and morpholine via amide formation, for which quantitative yields to the target amide were obtained after 3–5 h of reaction. The protocol could also be extended to a tandem oxidation/amidation process which shows the potential of the proposed approach for the promotion of liquid-phase organic reactions at room temperature.
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