Abstract:
Diazopyrazole containing two nitro groups in the ring – 4-diazo-3,5-dinitropyrazole – has been synthesised for the first time by diazotisation of the corresponding aminodinitropyrazole. 4-Diazo-3,5-dinitropyrazole reacts with salts of methylene-active compounds, CH2(CN)NO2 and CH2(COCH3)2, to give azo coupling products, whereas its interaction with nucleophiles such as Br–, N3 or H2O(H+) involves replacement of one of the nitro groups yielding 4-diazo-3-R-5-nitropyrazoles.
Document Type:
Article
Language: English
Citation:
I. L. Dalinger, T. I. Cherkasova, S. A. Shevelev, “Synthesis of 4-diazo-3,5-dinitropyrazole and characteristic features of its behaviour towards nucleophiles”, Mendeleev Commun., 7:2 (1997), 58–59
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