Chemistry of Heterocyclic Compounds p. 1347 - 1352 (1991)
Update date:2022-07-30
Topics:
Krauze, A. A.
Ensch, H.-I.
Dubur, G. Ya.
The condensation of 4-pyridylacetone, m-nitrobenzaldehyde, and cyanoacetamide (cyanothioacetamide) in the presence of bases was used to obtain 5-pyridyl-substituted 6-methyl-4-(m-nitrophenyl)-3-cyanopyridin-2(1H)-ones, the corresponding pyridine-2(1H)-thiones, and their hydrogenated analogs. 2-Carbamoylmethylthiopyridine was isolated in the alkylation of 5-(4'-pyridyl)pyridine-2(1H)-thione with iodoacetamide under mild conditions, while 2-carbamoylthio-5-(N-carbamoylmethyl-4'-pyridyl)pyridine iodide was isolated under more severe conditions.
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