Water → HCID 22169696, compound

Participants

Reaction Steps

3-Chloro-4,5-bis(4-chlorophenyl)pyridazine (10.0 g, 30.0 mmol) was dissolved in pyridine (30 mL) and hydrazine mono-hydrate was added (4.5 g, 90.0 mmol). The reaction mixture was refluxed for 3 h and was then added to water (100 mL). The pale colored solid was collected by filtration and rinsed thoroughly with water. The product was dried in a vacuum oven to give the title compound, 1-(4,5-bis(4-chlorophenyl)pyridazin-3-yl)hydrazine (9.5 g, 96%). MS: M+H=331. 1H NMR (DMSO-d6, 500 MHz): δ 8.59(1H, s), 8.56 (1H, br), 7.40 (2H, d, J=10 Hz), 7.35 (2H, d, J=10.0 Hz), 7.14–7.16 (4H, m).

Provenance & Evidence