论文信息 - Methods for controlling the regioselection in the reaction of 3-amino-5-benzylthio-1,2,4-triazole with acetylacetaldehyde dimethyl acetal

Methods for controlling the regioselection in the reaction of 3-amino-5-benzylthio-1,2,4-triazole with acetylacetaldehyde dimethyl acetal

The reaction of 3-amino-5-benzylthio-1,2,4-triazole with acetylacetaldehyde dimethyl acetal affords 2-benzylthio-5-methyl-1,2,4-triazolo [1,5a] pyrimidine or 2-benzylthio-7-methyl-1,2,4-triazolo [1,5a] pyrimidine regioselectively depending on the reaction conditions

J. Bordner | R. Meikle | W. Kleschick | W. T. Monte | S. Snider

[1] P. Sykes,et al. Synthesis and structure of some azolo[a]pyrimidines, 2,6,7,8-tetrahydro-1H-cyclopenta[e]azolo[a]pyrimidines, 6,7-dihydro-5H-cyclopenta[f]azolo[a]pyrimidines, 7,8-dihydro-6H-cyclopenta[f]-s-triazolo[4,3-b]pyridazine, 5,6,7,8-tetrahydro-azolo[b]quinazolines, 6,7,8,9-tetrahydroazolo[a]quinazolines, and , 1979 .

[2] P. Main,et al. The application of phase relationships to complex structures. III. The optimum use of phase relationships , 1971 .

[3] William T. Simpson,et al. Coherent X‐Ray Scattering for the Hydrogen Atom in the Hydrogen Molecule , 1965 .

[4] F. Kurzer,et al. 170. Heterocyclic compounds from urea derivatives. Part VI. Synthesis and cyclisation of 1-amino-3-(NN′-diarylamidino)guanidines and some analogues , 1965 .

[5] H. R. Beilfuss,et al. The Structure of Certain Polyazaindenes. IV. Compounds from β-Keto Acetals and β-Methoxyvinyl Ketones1 , 1959 .