Sodium Carbonate → HCID 3348523, compound

Participants

Reaction Steps

8-Hydroxyquinoline (5 mg, 0.03 mmol) was added to a solution of 3-cyanobenzoic acid (1 g, 6.8 mmol) in 50 mL ethanol. To this reaction mixture were added first hydroxylamine hydrochloric acid (950 mg, 13.6 mmol) in water (8 mL) followed by sodium carbonate (1.2 g, 10.9 mmol) in water (12 mL). The mixture was heated to reflux for 4 h. After removal of ethanol under reduced pressure, the residue was diluted with water, and the aqueous solution was acidified with 10% HCl to pH˜3. The white precipitate was filtrated, washed with water and acetone and then dried under reduced pressure to afford compound 3-(N′-hydroxycarbamimidoyl)benzoic acid (1 g, yield 82%): 1H NMR (400 MHz, CDCl3) δ 13.03 (br s, 1H), 9.76 (s, 1H), 8.27-8.26 (m, 1H), 7.95-7.89 (m, 2H), 7.53 (t, J=7.8 Hz, 1H), 5.94 (br s, 2H). MS (ESI) m/z: Calculated for C8H8N2O3: 180.05. found: 180.9 (M+H)+.

Provenance & Evidence