Synthesis and structure of 6-amino-3,5-dicyano-4-heptylpyridine-2(1H)-thione
作者:V. D. Dyachenko、V. N. Nesterov、S. G. Krivokolysko、V. P. Litvinov
DOI:10.1007/bf02495372
日期:1997.1
Condensation of caprylic aldehyde with cyanothioacetamide taken in a ratio of 1 : 2 affords 6-amino-3,5-dicyano-4-heptylpyridine-2(1H)-thione. The structure of the thione was studied by X-ray structural analysis.
The use of aliphatic aldehydes for the synthesis of 4-alkyl-6-amino- 3,5-dicyanopyridine-2(1H)-thiones
作者:N. G. Frolova、V. K. Zav'yalova、V. P. Litvinov
DOI:10.1007/bf01431320
日期:1996.4
The condensation of aliphatic aldehydes with malononitrile and cyanothioacetamide gives 4-alkyl-2,6-diamino-3,5-dicyano-4H-thiopyrans which recyclize into 4-alkyl-6-amino3,5-dicyanopyridine-2(IH)-thiones. The latter are easily S-alkylated with α-haloacetonitriles and α-haloacetophenones.