3-苄基-4-氨基-5-芳胺基-1,2,4-三唑的合成与表征

The synthesis and characterization of 3-benzyl-4-amino-5-aryllamino-1,2,4-triazoles

Starting from the basic stock,ethyl phenylacetate and aryl amines,1benzylformy14ary1 thiosemicarbazides were prepared through multistep reactions.The ringclosure of 1benzylformy14ary1 thiosemicarbazides at the presence of hydrazine hydrate afforded the title compounds,3benzy14amino5arylamino1,2,4triazoles,with structures confirmed by elemental analysis,IR,1H and13C NMR spectra.