Hydrogen Bromide → HCID 135665334, compound

Participants

Reaction Steps

1.5 g of 2-(3,4-dimethoxy-5-nitrophenyl)pyridine are dissolved in 30 ml of 48 percent aqueous hydrobromic acid. The reaction mixture is stirred at 100° for 16 hours and at 23° for 18 hours. The precipitate which thereby forms is filtered and recrystallized from methanol/ether. There is obtained 3-nitro-5-(2-pyridyl)pyrocatechol hydrobromide of m.p. 239°-240°.

Provenance & Evidence