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
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