ChemInform Abstract: Recyclization of 4‐Alkyl(aryl)‐2,6‐diamino‐3,5‐dicyano‐4H‐thiopyrans with 2‐Aminoethanol and (2‐Furyl)methylamine.

Abstract

Recyclization of 4-Alkyl(aryl)-2,6-diamino-3,5-dicyano-4H-thiopyrans with 2-Aminoethanol and (2-Furyl)methylamine. -Title reaction leading to pyridines (III) occurs through C-S cleavage, nucleophilic attack by amines (II), heterocyclization, and oxidative dehydrogenation. -(DYACHENKO*, V. D.; RYLSKAYA, T. A.; Chem. Heterocycl. Compd. (N. Y., NY, U. S.) 49 (2013) 6, 897-901, http://dx.doi.org/10.1007/s10593-013-1323-0 ; Taras Shevchenko Lugansk Natl. Univ., Lugansk 91011, Ukraine; Eng.) -R. Langenstrassen 12-141