ISSN:
1573-9171
Keywords:
1-acyl-2-bromoacetylenes
;
α-acetylenic ketones
;
3-acyl-6-methyl-5H-thiazolo[2,3-c[1,2,4]triazines
;
substituted 3-(2-acylvinylthio)-1,2,4-triaziii-5-ones
;
intramolecular cyclization
;
X-ray structural analysis
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract 3-Acyl-6-methyl-5H-thiazolo[2,3-c][1,2,4]triazines were synthesized by reaction of 1-acyl-2-bromoacetylenes with 6-methyl-3-thioxo-1,2,4-triazin-5-one in methanol in the presence of triethylamine at 20 °C. The structure of 3-benzoyl-6-methyl-5H-thiazolo[2,3-c][1,2,4]triazine was established by X-ray structural analysis. Substituted 3-(2-acetylvinylthio)1,2,4-triazin-5-ones were obtained by the reaction of α-acetylenic ketones with 6-methyl-3-thioxo-1,2,4-triazin-5-one under the same conditions. The structures of the new compounds were confirmed by IR,1H, and13C NMR spectroscopy.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01430652
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