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Unusual reaction of 5-benzoyl-3-ethoxycarbonyl-6-methylthio-1-r-1,2-dihydropyridin-2-ones with nitrogen-containing 1,4-dinucleophiles

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

The reaction of 5-benzoyl-3-ethoxycarbonyl-6-methylthio-1-R-1,2-dihydropyridin-2-ones with the nitrogen-containing 1,4-dinucleophiles o-phenylenediamine, o-aminothiophenol, and ethylenediamine, proceeds as a recyclization, the products of which are derivatives of 5-(1H-benzimidazol-2-yl)-2H-2-pyranone, 5-(benzothiazol-2-yl)-2H-2-pyranone, and 5-(4,5-dihydro-1H-imidazol-2-yl)-2H-2-pyra-none respectively.

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Correspondence to V. N. Britsun.

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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 1089–1095, July, 2008.

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Britsun, V.N., Esipenko, A.N. & Lozinskii, M.O. Unusual reaction of 5-benzoyl-3-ethoxycarbonyl-6-methylthio-1-r-1,2-dihydropyridin-2-ones with nitrogen-containing 1,4-dinucleophiles. Chem Heterocycl Comp 44, 876–881 (2008). https://doi.org/10.1007/s10593-008-0124-3

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  • DOI: https://doi.org/10.1007/s10593-008-0124-3

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