A reusable CuSO4 · 5H2O/cationic 2,2′‐bipyridyl system catalyzed homocoupling of terminal alkynes in water |
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| Authors: | Tzu‐Min Wu Shao‐Hsien Huang Fu‐Yu Tsai |
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| Affiliation: | Institute of Organic and Polymeric Materials, National Taipei University of Technology, 1, Sec. 3, Chung‐Hsiao E. Rd., Taipei 106, Taiwan |
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| Abstract: | A reusable CuSO4 · 5H2O/cationic 2,2′‐bipyridyl system catalyzed the homocoupling reaction of terminal alkynes in water using I2 as the additive in the presence or absence of tetrabutylammonium bromide, giving the 1,3‐diynes in good to high yields. After reaction, the residual aqueous solution could be reused several times. Copyright © 2011 John Wiley & Sons, Ltd. |
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| Keywords: | copper(II) sulfate cationic 2,2′ ‐bipyridyl water reusable terminal alkyne homocoupling 1,3‐diyne |
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