Abstract
New 8,8′-(1,4-dihydro-1,2,4,5-tetrazine-3,6-diyl)bis[7-R-3-tert-butylpyrazolo[5,1-c][1,2,4]triazin- 4(6H)-ones] (R = H, NH2, NHAc) were synthesized by reaction of 3-tert-butyl-4-oxo-1,4-dihydropyrazolo- [5,1-c][1,2,4]triazine-8-carbonitriles with hydrazine. Diazotization of the title compounds was accompanied by opening of the tetrazine ring with the formation of pyrazolo[5,1-c][1,2,4]triazine-8-carbonyl azides.
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