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Reactions of pyrazole-3(5)-diazonium salts with 4-hydroxy-2Н-chromen-2-one and isochroman-1,3-dione

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Chemistry of Heterocyclic Compounds Aims and scope

Derivatives of a previously unknown heterocyclic system 6Н-chromeno[4,3-e]pyrazolo[5,1-c][1,2,4]triazin-6-one were obtained via reaction of pyrazole-3(5)-diazonium salts with 4-hydroxy-2Н-chromen-2-one. Analogous reactions with isochroman-1,3-dione are followed by recyclization leading to the formation of 2-(4-hydroxypyrazolo[5,1-c][1,2,4]triazin-3-yl)benzoic acids.

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Authors and Affiliations

  1. Voronezh State University, 1 Universitetskaya Sq., Voronezh, 394006, Russia

    Irina V. Ledenyova, Alena A. Gracheva & Khidmet S. Shikhaliev

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  1. Irina V. Ledenyova
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  2. Alena A. Gracheva
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  3. Khidmet S. Shikhaliev
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Correspondence to Irina V. Ledenyova.

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Translated from Khimiya Geterotsiklicheskikh Soedinenii, 2015, 51(8), 734–737

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Ledenyova, I.V., Gracheva, A.A. & Shikhaliev, K.S. Reactions of pyrazole-3(5)-diazonium salts with 4-hydroxy-2Н-chromen-2-one and isochroman-1,3-dione. Chem Heterocycl Comp 51, 734–737 (2015). https://doi.org/10.1007/s10593-015-1766-6

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  • DOI: https://doi.org/10.1007/s10593-015-1766-6

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