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ChemInform Abstract: Microwave-Assisted Copper-Catalyzed Cross-Coupling Reaction of Alkynes with Aryl Iodides and Vinyl Halides.

✍ Scribed by Wen-Ting Tsai; Yun-Yung Lin; Yu-Jen Wang; Chin-Fa Lee

Book ID
112049074
Publisher
John Wiley and Sons
Year
2012
Weight
49 KB
Volume
43
Category
Article
ISSN
0931-7597

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Efficient Copper-Catalyzed Cross-Couplin
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## Abstract A copper‐catalyzed cross‐coupling reaction of alkynes with aryl iodides is described. The system tolerates a broad range of functional groups and enables the use of sterically demanding substrates with only 1.0–2.5 mol‐% of Cu~2~O and 1.0–2.5 mol‐% of xantphos as the catalyst.

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Coupling reaction of aryl and vinyl halides with terminal alkynes using a catalyst system of copper(I) iodide -triphenylphosphine proceeds efficiently in the presence of potassium carbonate to give the corresponding unsymmetrical acetylenes in good yield.