A reusable CuSO4 · 5H2O/cationic 2,2′-bi
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Tzu-Min Wu; Shao-Hsien Huang; Fu-Yu Tsai
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Article
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2011
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John Wiley and Sons
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English
⚖ 109 KB
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A reusable CuSO 4 • 5H 2 O/cationic 2,2 -bipyridyl system catalyzed the homocoupling reaction of terminal alkynes in water using I 2 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 c