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Nickel-Catalyzed Highly Regioselective Hydrocyanation of Terminal Alkynes with Zn(CN)2 Using Water as the Hydrogen Source

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journal contribution
posted on 31.05.2018, 00:00 by Xingjie Zhang, Xin Xie, Yuanhong Liu
The first efficient and general nickel-catalyzed hydrocyanation of terminal alkynes with Zn­(CN)2 in the presence of water has been developed. The reaction provides a regioselective protocol for the synthesis of functionalized vinyl nitriles with a range of structural diversity under mild reaction conditions while obviating use of the volatile and hazardous reagent of HCN. Deuterium-labeling experiments confirmed the role of water as the hydrogen source in this hydrocyanation reaction.