Chemistry of Heterocyclic Compounds p. 646 - 650 (1991)
Update date:2022-08-16
Topics:
Andrianov, V. G.
Semenikhina, V. G.
Eremeev, A. V.
The rearrangement of unsubstituted 1,2,4-oxadiazole-3-carboxylic acid amidoxime and its N-isopropyl derivative to an aminofurazan is catalyzed by ammonia, while in the case of the amidoxime containing a piperidino substituent the rearrangement is catalyzed by acids.In ammonium hydroxide the piperidino and imidazolyl derivatives are converted to cyano amidoximes as a result of opening of the oxadiazole ring.
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