Nguyen Tien Cong, Mai Anh Hung, Pham Ngoc Nam
2014
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Abstract
Treatment of (4,6-dimethylpyrimidin-2-ylsulfanyl)acetohydrazide with carbon disulfide in the solution of potassium hydroxide in ethanol gave 5,7-dimethyl-[1,2,4]triazolo[1,5- a ]pyrimidine-2-thiol not 5-[(4,6-dimethylpyrimidin-2-ylsulfanyl)methyl]-1,3,4-oxadiazole-2-thiol due to the occurrence of a complex mechanism. 5,7-Dimethyl-[1,2,4]triazolo[1,5- a ]pyrimidine-2-thiol was transformed into six N -substituted amide derivatives by reaction with different chloroacetamides. The structures of all products were confirmed by IR, NMR, and MS data. Keywords : [1,2,4]triazolo[1,5- a ]pyrimidine-2-thiol, amide, (4,6-dimethylpyrimidin-2-ylsulfanyl)acetohydrazide.