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Diazo carbonyl derivatives of heterocycles. 5. Intramolecular cyclization of 2-hetarylmercaptoalkyl-diazo ketones. Synthesis of condensed 1,3-thiazin-5-ones

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

The intramolecular heterocyclization of 2-benzazolylmercaptoalkyl diazomethyl ketones under the influence of acidic agents leads to 1,3-thiazino[2,3-b]benzim-idazole, 1,3-thiazino[2,3-b]benzothiazolium, and 1,3-thiazino[2,3-b]benzoxazolium systems. Under similar conditions 2-quinolylmercaptoalkyl diazomethyl ketones form 1,3-thiazino[2,3-a]quinolinium systems.

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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 635–639, May, 1984.

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Kartsev, V.G., Pokidova, T.S. & Dovgilevich, A.V. Diazo carbonyl derivatives of heterocycles. 5. Intramolecular cyclization of 2-hetarylmercaptoalkyl-diazo ketones. Synthesis of condensed 1,3-thiazin-5-ones. Chem Heterocycl Compd 20, 508–512 (1984). https://doi.org/10.1007/BF00514302

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  • DOI: https://doi.org/10.1007/BF00514302

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