METHOD OF OBTAINING AMIDRAZONES OF 4-R-1,2,5-OXADIAZOLE-3-CARBOXYLIC ACID

METHOD OF OBTAINING AMIDRAZONES OF 4-R-1,2,5-OXADIAZOLE-3-CARBOXYLIC ACID

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 i...

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Hauptverfasser: STEPANOV ANDREJ IGOREVICH, SANNIKOV VLADIMIR SERGEEVICH, DASHKO DMITRIJ VLADIMIROVICH, ASTRAT'EV ALEKSANDR ALEKSANDROVICH
Format: Patent
Sprache:eng ; rus
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung: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 Изобретение относится к способу получения амидразонов 4-R-1,2,5-оксадиазол-3-карбоновой кислоты, который основан на реакции раскрытия 1,2,4-оксадиазольного цикла производных 4-(1,2,4-оксадиазол-3-ил)-1,2,5-оксадиазолов при взаимодействии с гидразином. Способ позволяет снизить трудоемкость процесса, увеличить выход и повысить экономические показатели процесса. 2 з.п. ф-лы, 15 пр.