Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 10, Issue 36, Pages 7266-7268Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ob26147b
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Funding
- National Basic Research Program of China [2011CB808700]
- National Natural Science Foundation of China [21172192]
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An efficient and practical copper-catalyzed highly regio- and stereoselective borylcupration of internal alkynes with bis(pinacolato) diboron using a catalytic amount of K2CO3 as base producing Z-alkenylboron compounds has been demonstrated by applying the ligand effect: commercially available electron-rich tris(p-methoxyphenyl) phosphine ensures a smooth and efficient reaction. Functionalized alkynes, such as propargylic alcohols and derivatives as well as N-propargyl tosylamide, may also be used with excellent selectivity.
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