Ethyl hexyl acetylene

Another name for dec-3-yne is ethyl n-hexyl acetylene. It can be made by adding an ethyl group and a hexyl group to acetylene. This can be done in either order. We begin by adding the hexyl group. 

Hexyl acetylene Ethanol Octene-l-carboxyHc acid-2 ethyl ester [457]... 

The method is not satisfactory for methyl-and ethyl-acetylenes or with secondary and tertiary alkyl halides or with primary alkyl halides above hexyl. 

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