Journal
CHINESE JOURNAL OF CHEMISTRY
Volume 31, Issue 2, Pages 187-194Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cjoc.201200878
Keywords
catalysis; copper; iron; 1; 3-diyne; ligand-free
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Funding
- National Natural Science Foundation of China [21072143]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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A simple and efficient protocol for Fe/Cu cocatalyzed oxidative homocoupling reaction of terminal alkynes to symmetrical 1,4-disubstituted-1,3-diynes was presented. The results showed that both CuBr and FeCl3 played crucial roles in the reaction. It is noteworthy that this protocol employs mild, efficient, aerobic and ligand free conditions. The alkynes, including aromatic, heteroaromatic and aliphatic alkynes, were transformed into the corresponding 1,3-diynes in good to excellent yields.
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