Abstract
The condensation of enamines derived from acetoacetanilides, heterocyclic aldehydes, and cyanothioacetamide yielded ammonium 5-arylcarbamoyl-5-heteryl-6-methyl-3-cyano-1,4-dihydropyridine-2-thiolates, which were subsequently used for the synthesis of substituted 2-alkylthio-1,4-dihydropyridines, 2-alkylthiopyridines, and thieno[2,3-b]pyridines. The reaction of acetoacetamide with heteroaromatic aldehydes and cyanoselenoacetamide in the presence of N-ethylmorpholine yielded N-ethylmorpholinium 4-heteryl-5-carbamoyl-6-methyl-3-cyano-1,4-dihydrolyridine-2-selenolates, from which substituted 2-alkylseleno-1,4-dihydropyridines were prepared.
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Translated from Zhurnal Obshchei Khimii, Vol. 75, No. 3, 2005, pp. 483–492.
Original Russian Text Copyright © 2005 by Dyachenko.
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Dyachenko, V.D. Synthesis of Ammonium 5-Arylcarbamoyl-4-heteryl-6-methyl-3-cyano-1,4-dihydropyridine-2-thiolates and 4-Heteryl-5-carbamoyl-6-methyl-3-cyano-1,4-dihydropyridine-2-selenolates. Russ J Gen Chem 75, 447–456 (2005). https://doi.org/10.1007/s11176-005-0248-4
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DOI: https://doi.org/10.1007/s11176-005-0248-4