An Olefin Moiety in the Presence of Terminal Alkyne Function

4 An Olefin Moiety in the Presence of Terminal Alkyne Function 

Terminal triple bonds are usually hydrogenated in preference to terminal or internal double bonds in competitive conditions, unless the former bonds are highly hindered, 

Urushibara, Y. Nishimura, S. Bull. Chem. Soc. Jpn. 1954, 27, 480 (Urushibara Ni-B prepared by treatment of precipitated Ni-Zn couple with aqueous NaOH). 

Metals 1982, 24, 218 (nickel powder deposited from its vapor). 

Montgomery, S. R. in Catalysis of Organic Reactions Moser, W. R., Ed. Marcel Dekker New York, 1981 p 383. 

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