Summary
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1.
The reaction of alkyl 2-aminovinyl ketones with alkyl 2-chlorovinyl ketones was investigated. It provides a method for the synthesis of 5-acyl-2-alkylpyridines.
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2.
The structure of the products was confirmed by the oxidation of one of them to isocinchomeromic acid.
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3.
It was shown that the condensation of 2-aminovinyl methyl ketone with acetonacetaldehyde diemthyl acetal yields 5-acetyl-2-methylpyridine.
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Kochetkov, N.K., Dombrov sky, Y., Bazhenova, A.V. et al. 2-Aminovinyl ketones Communication 4. Synthesis of ketones of the pyridine series. Russ Chem Bull 5, 165–168 (1956). https://doi.org/10.1007/BF01177638
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DOI: https://doi.org/10.1007/BF01177638