SYNTHESIS OF 3-CYANO-5-ETHOXYCARBONYL-4-METHYL-6-PHENYLPYRIDINE-2(1H)-THIONE AND ITS ALKYLATION
DOI:
https://doi.org/10.1007/1104Abstract
The condensation of acetaldehyde with cyanothioacetamide and ethyl benzoylacetate in the presence of N-methylmorpholine leads to the formation of 3-cyano-5-ethoxycarbonyl-4-methyl-6-phenylpyridine-2(1H)-thione. Alkylation of the last afforded the corresponding substituted 2-alkylthiopyridines.
Authors: S. G. Krivokolysko, V. D. Dyachenko, and V. P. Litvinov.
English Translation in Chemistry of Heterocyclic Compounds, 1999, 35 (12), pp 1441-1442