Reaction of lithium acetylides with 2-chloro-2-nitropropane or 2,2-dinitropropane gives high yields of the nitroacetylenes, which in acidic solution undergo hydration and elimination of nitrous acid to yield αβ-unsaturated ketones.
M. Jawdosiuk, M. Makosza, B. Mudryk and G. A. Russell, J. Chem. Soc., Chem. Commun., 1979, 488 DOI: 10.1039/C39790000488
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