Sa. Shevelev et al., NITROPYRAZOLES .8. 3(5)-AMINO-4-NITROPYRAZOLE - CONVENIENT SYNTHESIS AND STUDY OF NITRATION, Russian chemical bulletin, 42(11), 1993, pp. 1861-1864
A new preparative method for the synthesis of 3(5)-amino-4-nitropyrazo
le starting from accessible 3(5)-methylpyrazole has been elaborated. N
itration of the former affords 3(5)-nitramino-4-nitropyrazole or 1,4-d
initro-3-aminopyrazole, depending on the reaction conditions.