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Cyclization of 5-diazoimidazole-4-thioamide

Synthesis of 2-azapurines

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

Cyclization of 5-diazoimidazole-4-thioamide and -4-methylthioamide gives derivatives of a new heterocyclic system — imidazo[4,5-e]-2,3,4-thiadiazine — which are readily recyclized to 2-azapurines. 4-Methylthioimidazo[4,5-d]-1,2,3-triazine was synthesized, and its reactions with amines and hydrazines were studied.

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Communication III from the series “Synthesis of Analogs of 5(4)-Aminoimidazole-4(5)-carboxamide and Purines.” See [1] for communication II.

Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1141–1145, August, 1975.

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Pushkareva, Z.V., Ofitserov, V.I., Mokrushin, V.S. et al. Cyclization of 5-diazoimidazole-4-thioamide. Chem Heterocycl Compd 11, 995–998 (1975). https://doi.org/10.1007/BF00470508

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  • DOI: https://doi.org/10.1007/BF00470508

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