[C:1]([CH:5]([C:8]#[N:9])[C:6]#[N:7])([CH3:4])([CH3:3])[CH3:2].O.[NH2:11][NH2:12]>C(O)CCC>[C:1]([C:5]1[C:8]([NH2:9])=[N:11][NH:12][C:6]=1[NH2:7])([CH3:4])([CH3:3])[CH3:2]A mixture of tert-butylmalononitrile (5.01 g, 41.0 mmol) and hydrazine monohydrate (10.0 mL, 205 mmol) in 1-butanol (40 mL) was heated to reflux and stirred overnight (19 hours). The mixture was cooled to ambient temperature. Concentration afforded 6.33 g (100%) of the title compound. MS (DCI) m/z 155 (M+H)+.
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