Abstract
A new compound, 1,5-dihydro-3-methyl-7-nitro-propylpyrazolo[4,3-c][1,2,5]benzotriazepine, was synthesized by intramolecular cyclization of 5-amino-4-[(2-bromo-5-nitrophenyl) azo]-3-methyl-1-isopropylpyrazole, and it was established on the basis of the spectral data that the triazepine ring in the synthesized compound exists in two tautomeric forms — amino-azo- and hydrazone. The structure of the compound synthesized was confirmed by the data of the PMR, IR, electronic, and mass spectra.
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V. M. Dziomko, B. K. Berestevich, and R. S. Kuzanyan, Khim. Geterotsikl. Soedin., No. 6, 802 (1979).
V. M. Agre, T. F. Sysoeva, V. K. Trunov, V. A. Tafeenko, V. M. Dzimko, and B. K. Berestevich, Zh. Strukt. Khim., 20, 1064 (1979).
A. V. Iogansen and G. D. Litovchenko, Zh. Prikl. Spektrosk., 3, 538 (1965).
A. R. Katrizky and P. Simmons, Recl. Trav. Chim., 79, 361 (1960).
V. M. Dziomko, R. O. Kalninya, Yu. S. Ryabokobylko, L. V. Shmelev, G. M. Adamova, R. V. Poponova, and M. Z. Gurevich, Khim. Geterotsikl. Soedin., No. 1, 106 (1984).
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1136–1139, August, 1984.
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Dziomko, V.M., Kalninya, R.O., Ryabokobylko, Y.S. et al. A new derivative of 1,5-dihydropyrazolo[4,3-c][1,2,5]benzotriazepine. Chem Heterocycl Compd 20, 930–933 (1984). https://doi.org/10.1007/BF00513587
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DOI: https://doi.org/10.1007/BF00513587