Journal
TETRAHEDRON
Volume 66, Issue 5, Pages 1064-1069Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2009.11.011
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Funding
- University of the Ryukyus
- joint Study Program of the Institute for Molecular Science
- MEXT [460]
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The palladium-catalyzed coupling reaction of aryl halides with terminal alkynes, the Sonogashira coupling, took place in water under copper-free conditions by use of an amphiphilic polystyrene-poly(ethylene glycol) (PS-PEG) resin-supported palladium-phosphine complex to give the corresponding aryl-substituted alkynes in high yields. The PS-PEG resin-supported palladium catalyst was recovered by simple filtration and reused four times without any loss of catalytic activity. (C) 2009 Elsevier Ltd. All rights reserved.
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