Nitric Acid → HCID 67213398, compound

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of sulfuric acid (14 ml, 95-97%) and HNO3 (10 ml, fum.) was added at 0° C. 3-(3-pyridinyl)-1H-imidazole [CAS No. 51746-85-1, commercially available] (4.25 g, 29.3 mmol). The reaction mixture was stirred at room temperature for 45 min and at 50° C. for 6 h and poured into ice-water (100 ml). Solid NaHCO3 was added to the stirred mixture until the pH reached 5-6, the precipitated product was collected by filtration and washed with water and hexane to yield 2-nitro-3-(3-pyridinyl)-1H-imidazole (5.53 g, 99%) as an off-white solid; mp 261° C.

Provenance & Evidence