Abstract
Previously unknown 3,4-diamino-6-aryl-1H-pyrazolo[3,4-b]pyridine-5-carbonitriles were synthesized by reaction of 4-amino-6-aryl-2-bromopyridine-3,5-dicarbonitriles with hydrazine hydrate. Study of the optical properties of the synthesized compounds revealed their fluorescence in solution with the emission maximum located in the range of λ 484–548 nm and quantum yield of 0.9–3.9%.
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ACKNOWLEDGMENTS
A part of this study was performed in the framework of state assignment for the Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, in the field of fundamental research.
Funding
This work was financially supported by the Ministry of Science and Higher Education of the Russian Federation (project no. 0849-2020-0003).
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Translated from Zhurnal Organicheskoi Khimii, 2022, Vol. 58, No. 7, pp. 754–759 https://doi.org/10.31857/S0514749222070084.
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Al-Shuaeeb, R.A.A., Alekseeva, A.Y., Yashchenko, N.N. et al. Synthesis and Optical Properties of 3,4-Diamino-6-aryl-1H-pyrazolo[3,4-b]pyridine-5-carbonitriles. Russ J Org Chem 58, 997–1001 (2022). https://doi.org/10.1134/S1070428022070089
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DOI: https://doi.org/10.1134/S1070428022070089