Bulletin of the Academy of Sciences of the USSR Division of Chemical Science p. 2463 - 2466 (1991)
Update date:2022-08-10
Topics:
Laikhter, A. L.
Cherkasova, T. I.
Semenov, V. V.
A series of 4-nitropyrazoles was synthesized from dinitromethane and other gem-dinitro derivatives.New cyclization reactions of aliphatic azines with dinitromethane and an intramolecular cyclization of dinitroacetazines have been discovered, with which 4-nitropyrazoles substituted at the 3- and 5-positions of the pyrazole ring can be obtained in one stage.
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