Synthesis and Comparison of the Reactivity of 3,4,5-1<i>H</i>-Trinitropyrazole and Its<i>N</i>-Methyl Derivative
作者:Igor L. Dalinger、Irina A. Vatsadze、Tatyana K. Shkineva、Galina P. Popova、Svyatoslav A. Shevelev、Yuliya V. Nelyubina
DOI:10.1002/jhet.1026
日期:2013.7
(1) has been obtained via nitration of 3,5‐dinitropyrazole with mixture of sulfuric and nitric acids. Compound 1 reacts with excess ammonia and aliphatic amines, in the presence of bases with NH‐azoles, phenols, thiols, and triflouroethanol at mild conditions in water. All these reactions occur as the nucleophilic substitution of the nitro‐group at position 4 in 1 affording 4‐R‐3,5‐dinitropyrazoles.