Rearrangement of 1-oxa-2-azoles. 5. Synthesis and rearrangement of α-oximodimethyl-hydrazones of 1,2,4-oxadiazolyl-3-glyoxal View Full Text


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Article Info

DATE

1991-07

AUTHORS

V. G. Andrianov, V. G. Semenikhina, A. V. Eremeev

ABSTRACT

The acid halides of 1,2,4-oxadiazol-3-carbohydroxamic acids react with formaldehyde dimethylhydrazone to give the corresponding α-oximohydrazones, which with hydrochloric acid rearrange to yield the dimethylhydrazone of 3-amino-4-formylfurazane. In the absence of an acid catalyst, the 5-trifluoromethyl derivative undergoes a rearrangement to give 1-dimethylamino-4-nitroso-3-trifluoroacetamidopyrazole.

PAGES

783-784

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf00476213

DOI

http://dx.doi.org/10.1007/bf00476213

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1020847420


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