FIELD: chemistry.
SUBSTANCE: invention relates to method of obtaining amidrazone 4-R-1,2,5-oxadiazole-3-carboxylic acid, which is based on reaction of disclosure of 1,2,4-oxadiazole cycle of derivatives of 4-(1,2,4-oxadiazol-3-yl)-1,2,5-oxadiazoles in interaction with hydrazine.
EFFECT: method makes it possible to reduce labour consumption of process, increase output and increase economical indices of process.
3 cl, 15 ex
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