A New Synthesis of N-Alkyl 3-Acetyl-4-methoxycarbonylmethyl-2-methyl-1,4-dihydropyridines Utilizing sec-Aminodienyl Esters with Acetylacetone.

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  • New Synthesis of N Alkyl 3 Acetyl 4 methoxycarbonylmethyl 2 methyl 1 4 dihydropyridines Utilizing sec Aminodienyl Esters with Acetylacetone

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The reactions of sec-aminodienyl esters 3 with acetylacetone (4) afforded N-alkyl 3-acetyl-4-methoxycarbonylmethyl-2-methyl-1,4-dihydropyridines 5 and enamines 6, providing a new azaelectrocyclization reaction.

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