113486-67-2Relevant articles and documents
Novel method for the synthesis of s -triazolo[3,4- b ][1,3,4]thiadiazines
El-Sherief, Hassan A. H.,Hozien, Zeniab A.,El-Mahdy, Ahmed F. M.,Sarhan, Abdelwareth A. O.
experimental part, p. 2636 - 2642 (2010/09/11)
The reaction of 4-amino-3-mercapto-5-phenyl-s-triazole with aromatic or aliphatic ketones containing active -hydrogens as a methyl or methylene group using an acidified acetic acid method afforded the corresponding s-triazolo[3,4-b][1,3,4]thiadiazines. In
SYNTHESIS OF SOME CONDENSED s-TRIAZOLE HETEROCYCLES USING PHASE-TRANSFER CATALYSIS TECHNIQUE
Sultan, Adel A.
, p. 123 - 128 (2007/10/03)
Some condensed heterocyclic systems were obtained by reacting 3-phenyl-4-amino-s-triazole-5-thiol 1 as a dianionic ambident compound containing N- and S- poles with some tetrahalo- and dihalo derivatives as well as α-haloketones and
STUDIES ON 4-AMINO-5-ARYL-1,2,4-TRIAZOLE-3-THIONES
El-Barbary, A. A.,Fahmy, M.,El-Badawi, M.,El-Brembaly, K.,El-Brollosi, N. R.
, p. 619 - 628 (2007/10/03)
4-Amino-5-aryl-1,2,4-triazole-3-thiones 1 react with phenacylbromide at room temperature to give 2, which could be converted to 3 on reflux. Treatment of 1 with chloroacetonitrile and potassium hydroxide in equimolar ratio and in excess yielded 4 and 6, r
Synthesis of Heterocycles. Part VII . Synthesis and Antimicrobial Activity of Some 7H-s-Triazolothiadiazine and s-Triazolothiadiazole Derivatives
Eweiss, N. F.,Bahajaj, A. A.
, p. 1173 - 1182 (2007/10/02)
The cyclization of 4-amino-5-aryl-3-cyanomethylthio-1,2,4-triazoles II in the presence of concentrated sulfuric acid yields 7H-6-amino-s-triazolothiadiazines III.Cyclization of 4-amino-5-aryl-1,2,4-triazole-3-thiones I with phenacyl chloride yields 7H-3-aryl-6-phenyl-s-triazolothiadiazines IV.Similarly, compounds I condensed with cyanogen bromide, phenyl isothiocyanate and carbon disulfide to give the corresponding cyclized products 6-amino-3-aryl-s-triazolothiadiazoles V, 3-aryl-6-phenylamino-s-triazolothiadiazoles VI and 3-aryl-s-triazolothiadiazol-6(5H)thiones VII, respectively.Also in the presence of phosphoryl chloride, compounds I underwent cyclization with monocarboxylic acids and oxalic acid to 3,6-diaryl-s-triazolothiadiazole VIII and 6,6'-bis(3-aryl-s-triazolothiadiazoles) IX.The above compounds were screened for their antimicrobial activity.