Abstract A preparative procedure for the synthesis of 1, 4-dimethyl-3, 5-dinitropyrazole by nitration of 1, 4-dimethylpyrazole was developed. The reaction of 1, 4-dimethyl-3, 5- dinitropyrazole with dimethoxymethyl-(dimethyl) amine (N, N-dimethylformamide dimethyl acetal) gave (E)-N, N-dimethyl-2-(1-methyl-3, 5-dinitropyrazol-4-yl) ethenylamine. Acid hydrolysis of the latter afforded (1-methyl-3, 5-dinitropyrazol-4-yl) acetaldehyde, and the ...
[O'Sullivan, Paul T.; Buhr, Wilm; Fuhry, Mary Ann M.; Harrison, Justin R.; Davies, John E.; Feeder, Neil; Marshall, David R.; Burton, Jonathan W.; Holmes, Andrew B. Journal of the American Chemical Society, 2004 , vol. 126, # 7 p. 2194 - 2207]