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Spirocyclohexadienones: IX. Synthesis of 1-alkoxycarbonylmethylidene-6,10-dimethoxy-8-[(alkoxycarbonyl)cyanomethylidene]-3,3-R2-2-azaspiro[4.5]deca-6,9-dienes by four-component condensation of 1,3,5-trimethoxybenzene with α-branched aldehydes and alkyl cyanoacetates

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Abstract

Four-component condensation of 1,3,5-trimethoxybenzene, a C2-synton, and alkyl cyanoacetate in the presence of concentrated sulfuric acid gave the corresponding 1-alkoxycarbonylmethylidene-6,10-dimethoxy-8-[(alkoxycarbonyl)cyanomethylidene]-3,3-R2-2-azaspiro[4.5]deca-6,9-dienes.

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Authors and Affiliations

  1. Institute of Technical Chemistry, Ural Division, Russian Academy of Sciences, ul. Akademika Koroleva 3, Perm, 614013, Russia

    O. G. Stryapunina, I. V. Plekhanova, O. A. Maiorova, V. A. Glushkov & Yu. V. Shklyaev

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  1. O. G. Stryapunina
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  2. I. V. Plekhanova
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  3. O. A. Maiorova
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  4. V. A. Glushkov
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  5. Yu. V. Shklyaev
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Correspondence to V. A. Glushkov.

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Original Russian Text © O.G. Stryapunina, I.V. Plekhanova, O.A. Maiorova, V.A. Glushkov, Yu.V. Shklyaev, 2008, published in Zhurnal Organicheskoi Khimii, 2008, Vol. 44, No. 12, pp. 1778–1781.

For communication VIII, see [1].

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Stryapunina, O.G., Plekhanova, I.V., Maiorova, O.A. et al. Spirocyclohexadienones: IX. Synthesis of 1-alkoxycarbonylmethylidene-6,10-dimethoxy-8-[(alkoxycarbonyl)cyanomethylidene]-3,3-R2-2-azaspiro[4.5]deca-6,9-dienes by four-component condensation of 1,3,5-trimethoxybenzene with α-branched aldehydes and alkyl cyanoacetates. Russ J Org Chem 44, 1752–1755 (2008). https://doi.org/10.1134/S107042800812004X

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  • DOI: https://doi.org/10.1134/S107042800812004X

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