Sodium Bicarbonate → HCID 67266787, compound

Participants

Reaction Steps

A suspension of iron powder (20 g, excess) and (2-Bromo-4-nitrophenyl)-carbamic acid propyl ester (2.183 g, 7.20 mmol) in ethanol (80 mL) and 6 M aqueous hydrochloric acid (20 mL) was sonicated at room temperature for 10 minutes. The mixture was slowly poured into saturated aqueous sodium bicarbonate (NaHCO3) solution, filtered and extracted with ethyl acetate. The combined organic solution was washed 3 times with saturated aqueous NaHCO3, dried over sodium sulfate (Na2SO4) and evaporated in vacuo to give 1.67 g of the title compound as pale yellow oil which solidified. Yield 85%. LC/MS (m/z) 271.9, 273.8 (M+); RT=1.30, (UV, ELSD) 99%, 100%. 1H NMR (DMSO-d6): 0.90 (br. s (unresolved t), 3H), 1.59 (br. s (unresolved m), 2H), 3.94 (t, 2H), 5.31 (s, 2H, NH2), 6.50 (dd, 1H), 6.80 (unresolved d, 1H), 6.96 (br. d, 1H), 8.51 (br. s, NHCO).

Provenance & Evidence