Abstract
The reaction of arylcyanomethylenethiocetamides with Meldrum, acid gave Michael adducts as ammonium salts. When heated in alcohol, these salts undergo cyclization to ammonium 4-aryl-5-cyano-2-oxo-1,2,3,4-tetrahydropyridine-6-thiolates. The structure ofN-methylmorpholinium 4-(2′-chlorophenyl)-5-cyano-2-oxo-1,2,3,4-tetrahydropyridine-6-thiolate was established by X-ray structural analysis.
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Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 1029–1034, May, 1997.
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Nesterov, V.N., Krivokolysko, S.G., Dotsenko, V.V. et al. Synthesis, properties, and structures of ammonium 4-aryl-5-cyano-2-oxo-1,2,3,4-tetrahydropyridine-6-thiolates. Russ Chem Bull 46, 990–996 (1997). https://doi.org/10.1007/BF02496132
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DOI: https://doi.org/10.1007/BF02496132