Journal
ORGANIC LETTERS
Volume 11, Issue 3, Pages 709-712Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol8027863
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Funding
- National Natural Science Foundation of China [20772093, 20502020, 20832003]
- Excellent Youth Foundation of Hubei Scientific Committee
- Specialized Research Fund for the Doctoral Program of Higher Education [20060486005]
- Wuhan University
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Two different terminal alkynes now can be coupled together in the presence of NiCl2 center dot 6H(2)O/Cul by using an excess of one of the terminal alkyne substrates. The new method employed 20 mol % TMEDA as the ligand and environmentally benign O-2 or air as the oxidant. It is the first example using Ni-salt as catalyst by employing air or O-2 as oxidant, which led to efficient heterocoupling of two different alkynes.
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