Journal
ADVANCED SYNTHESIS & CATALYSIS
Volume 354, Issue 14-15, Pages 2777-2788Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.201200422
Keywords
gold; ionic liquids; nanoparticles; Ullmann reaction
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Funding
- Ministry of University and Scientific Research of Italy (MIUR)
- University of Bari
- CSGI
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The gold-catalysed Ullmann-type homocoupling of aryl halides is carried out with two different methodologies: (i) under micellar catalysis conditions in water and (ii) using a molten tetralkylammonium ionic liquid as the reaction medium. Glucose is used as a clean and renewable reductant. Morphology, size, and chemical composition of the gold nanoparticles were ascertained by X-ray photoelectron spectroscopy, transmission electron microscopy and dynamic light scattering analyses. A plausible reaction mechanism is proposed.
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