Condensation of aliphatic aldehydes with cyanothioacetamide has given 4-alkyl-6-amino-3,5-dicyano-2(1H)-pyridinethiones, which have also been synthesized by recyclization of 4-alkyl-2,6-diamino-4H-thiopyrans. Substituted 2-alkylthiopyridines and thieno[2,3-b]pyridines have been prepared from the pyridinethiones. 2,6-Diamino-4-isopropyl-3,5-dicyano-4H-thiopyran and 6-amino-4-isobutyl-2-methylthio-3,5-dicyanopyridine have been studied by x-ray crystallography. ©1998 Plenum Publishing Corporation.
CITATION STYLE
Dyachenko, V. D., Krivokolysko, S. G., Nesterov, V. N., & Litvinov, V. P. (1997). Synthesis of 4-alkyl-6-amino-3,5-dicyano-2(1H)-pyridinethiones. Chemistry of Heterocyclic Compounds, 33(12), 1430–1437. https://doi.org/10.1007/BF02291644
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