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Synthesis of new 3H-pyrrole derivatives from 3-aryl-2-oxa-7-azaspiro[4.4]nona-3,6,8-trienes

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Abstract

8-Amino-3-aryl-1-imino-4-methyl-6-(morpholin-4-yl)-2-oxa-7-azaspiro[4.4]nona-3,6,8-triene-9-carbonitriles reacted with acetic anhydride to give different products, depending on the solvent. The reaction in tetrahydrofuran gave the corresponding N-acyl derivatives at the imino group, whereas in pyridine 5-amino-2-morpholin-4-yl-3-(1-aryl-1-oxopropan-2-yl)-3H-pyrrole-3,4-dicarbonitriles were formed as a result of opening of the furan ring.

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Correspondence to M. Yu. Belikov.

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Original Russian Text © M.Yu. Belikov, I.V. Belikova, O.V. Ershov, S.V. Fedoseev, O.E. Nasakin, 2016, published in Zhurnal Organicheskoi Khimii, 2016, Vol. 52, No. 9, pp. 1324–1327.

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Belikov, M.Y., Belikova, I.V., Ershov, O.V. et al. Synthesis of new 3H-pyrrole derivatives from 3-aryl-2-oxa-7-azaspiro[4.4]nona-3,6,8-trienes. Russ J Org Chem 52, 1312–1315 (2016). https://doi.org/10.1134/S1070428016090104

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  • DOI: https://doi.org/10.1134/S1070428016090104

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