Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 312, Issue 2, Pages 439-443Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2007.03.017
Keywords
microemulsion; palladium; Sonogashira reaction
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A rapid copper- and ligand-free Sonogashira reaction was performed in an oil-in-water microemulsion. Palladium nanoparticles can be in situ formed in the microemulsion without other reductants. The microemulsion containing in situ-formed nano-Pd is an efficient system for the Sonogashira reaction. The reactions were faster in the microemulsion than in micelles. The effects of surfactant, alcohol, and temperature are discussed. Excellent yield of the Sonogashira reaction catalyzed by 0.5 mol% palladium could be achieved at 80 degrees C within 2 min. (c) 2007 Elsevier Inc. All rights reserved.
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