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Rearrangements of 1-oxa-2-azoles. 2. Structure and isomerization of pentamethylene-amidoximes of 4-aminofurazan-3-carboxylic acid

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Abstract

The Z-oxime of the pentamethyleneamide of 4-aminofurazan-3-carboxylic acid isomerizes — rapidly in acid media, slowly in the absence of acid — to the E-oxime which at 120–140‡C undergoes alkali-catalyzed rearrangement to 4-piperidinofurazan-3-carboxyamidoxime.

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Literature Cited

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Authors and Affiliations

  1. Institute of Organic Synthesis, Academy of Sciences of the Latvian SSR, 226006, Riga

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

Authors
  1. V. G. Andrianov
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  2. V. G. Semenikhina
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  3. A. V. Eremeev
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Additional information

For Communication 1 see [1].

Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 122–123, January, 1991.

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Andrianov, V.G., Semenikhina, V.G. & Eremeev, A.V. Rearrangements of 1-oxa-2-azoles. 2. Structure and isomerization of pentamethylene-amidoximes of 4-aminofurazan-3-carboxylic acid. Chem Heterocycl Compd 27, 102–104 (1991). https://doi.org/10.1007/BF00633229

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  • DOI: https://doi.org/10.1007/BF00633229

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