Synthesis of new heterocyclic compounds having 1,2,3‐triazole and isoxazole rings in a single molecule

Five series of new heterocyclic compounds of 1,2,4-triazole Mannich bases, 1,3,4-oxadiazole Mannich bases, 1,3,4-oxadiazolines, 1,2,4-triazolo[3,4-b]1,3,4-thiadiazines and 1,2,4-triazolo[3,4-b]1,3,4-thiadiazoles, in which 1,2,3-triazolyl and isoxazolyl have been united, were synthesized from the intermediate of 5-methyl-3-(2-phenyl-2H-1,2,3-triazol-4-yl)isoxazole-4-carbohydrazide, Their structures were established by spectroscopy.