obtained by condensation of 3-acetyl-4-methylfurazan with diethyl oxalate with subsequent treatment of the β-diketoester intermediate with hydrazine, and was nitrated to produce 3(5)-(3-methylfurazan-4-yl)-4-nitro-1Н-pyrazole-5(3)-carboxylic acid. The amide of this acid was used in a Hofmann rearrangement, providing 3-amino-5-(4-methylfurazan-3-yl)-4-nitro-1Н-pyrazole, nitration of which yielded the respective
甲基3-(4- methylfurazan -3-基)-1- Н用3-乙酰基-4- methylfurazan的缩合与随后的处理获得与
草酸二乙酯-
吡唑-5-羧酸乙酯的β二
酮酯中间体与
肼,并且是硝化以制备3(5) - (3- methylfurazan -4-基)-4-硝基-1- Н
吡唑-5(3) -
羧酸。该酸的酰胺用于霍夫曼重排,提供3-
氨基-5-(4-甲基
呋喃赞-3-基)-4-硝基-1_
吡唑,将其硝化生成各自的
硝胺。