Abstract
Annulation of 2-chloropyridine-3,4-dicarbonitriles with hydrazine hydrate and N,N-dimethylhydrazine afforded 3-aminopyrazolo[3,4-b]pyridine-4-carbonitriles and 3-amino-1-methylpyrazolo[3,4-b]pyridine- 4-carbonitriles, respectively.
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Original Russian Text © V.N. Maksimova, A.I. Naidenova, O.V. Ershov, O.E. Nasakin, V.A. Tafeenko, 2016, published in Zhurnal Organicheskoi Khimii, 2016, Vol. 52, No. 12, pp. 1837–1841.
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Maksimova, V.N., Naidenova, A.I., Ershov, O.V. et al. Synthesis of 3-aminopyrazolo[3,4-b]pyridine-4-carbonitriles. Russ J Org Chem 52, 1830–1834 (2016). https://doi.org/10.1134/S1070428016120204
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DOI: https://doi.org/10.1134/S1070428016120204