Investigations in the 4-aryl-5-arylamino-1,2,4-triazoline-3-thione series
Autor: | I. M. Bazavova, R. G. Dubenko, P. S. Pel'kis |
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Rok vydání: | 1971 |
Předmět: | |
Zdroj: | Chemistry of Heterocyclic Compounds. 7:121-124 |
ISSN: | 1573-8353 0009-3122 |
Popis: | Cyanoethylation of 4-aryl-5-arylamino-1,2,4-triazoline-3-thiones proceeds at the nitrogen atom of the thioamide group. Alkylation of 4-aryl-5-arylamino-1,2,3-triazoline-3-thiones with chloroacetonitrile, monochloroacetic acid and its ester, Β-chloropropionic acid, and methyl iodide proceeds at the sulfur atom. The acidity constants of substituted 4-phenyl-5-phenylamino-1,2,4-triazoline-3-thiones differ by two orders of magnitude from the acidity constants of the more acidic substituted 4-phenyl-1,2,4-triazoline-3-thiones. |
Databáze: | OpenAIRE |
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