Journal
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
Volume 321, Issue 1-2, Pages 110-116Publisher
ELSEVIER
DOI: 10.1016/j.molcata.2010.02.010
Keywords
Sonogashira-Hagihara reaction; Copper-free reaction; 2-Aminophenyl diphenylphosphinite; Palladium acetate; Water
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Funding
- Shiraz University Research Council
- TWAS Chapter of Iran Based, ISMO
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An efficient heterogeneous copper-free Sonogashira-Hagihara coupling reaction was performed in the presence of 2-aminophenyl diphenylphosphinite (L) as a ligand, Pd(OAc)(2) and a base in neat water at 25-95 degrees C. By this protocol, different aryl halides (Cl, Br, I) were reacted with phenylacetylene in good to excellent yields. The catalyst was recycled for the reaction of bromobenzene with phenylacetylene for six runs without appreciable loss of its catalytic activity. (C) 2010 Elsevier B.V. All rights reserved.
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