Abstract
Cycloalkanone oximes react with C-(2-furoyl)-, C-(2-thenoyl)- and C-(phenylaminocarbonyl)nitrile imines to give unexpected 3-substituted 1-aryl-1,2,4-triazaspiroalk-2-enes rather than the cycloaddition or the cyclocondensation products.
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For Part 3 see Ref. 1.
Published in Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1626–1631, November, 2004.
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Dalloul, H.M. Heterocyclic synthesis using Nitrile imines. 4. synthesis of 3-substituted 1-aryl-1,2,4-triazaspiroalk-2-enes. Chem Heterocycl Compd 40, 1402–1407 (2004). https://doi.org/10.1007/PL00021785
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DOI: https://doi.org/10.1007/PL00021785