Reaction of 3-oxo-N-phenylbutanethioamide with 5-amino-1H-1,2,4-triazoles
摘要:
Reactions of 3-oxo-N-phenylbutanethioamide with 3-substituted 5-amino-1H-1,2,4-triazoles in acetic acid led to the formation of 5-methyl-7,8-dihydro[1,2,4]triazolo[1.5-a]pyrimidine-7-thiones, 7-methyl5,8-dihydro[1,2,4]triazolo[1,5-alpyrimidine-5-thiones and 7-methyl-5-phenylamino[1,2,4]triazolo[1,5-a]pyrimidines. The structure of the products was proved by the H-1 and C-13 NMR spectra, X-ray diffraction data, and chemical transformations.