Reaction of α-halogen substituted β-ethoxyvinyl trifluoromethyl ketones with 2-aminopyridine: new route to trifluoroacetyl-containing heterocycles |
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Authors: | Liliya M KacharovaIgor I Gerus Alexey D Kacharov |
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Affiliation: | Institute of Bioorganic Chemistry and Petrochemistry, National Ukrainian Academy of Sciences, Murmanskaya 1, Kiev 02094, Ukraine |
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Abstract: | The reaction of α-halosubstituted β-ethoxyvinyl trifluoromethyl ketones with 2-aminopyridine gives 3-trifluoroacetyl imidazo[1,2-a]pyridine and 3-halo-1,1,1-trifluoro-4-(2-pyridinylamino)-3-buten-2-ones. The product ratio depends on the nature of the α-halogen atom and the solvent. |
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Keywords: | Fluorinated a-enamino ketones Enones Amination Cyclization Bicyclic heterocyclic compounds |
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