Methyl 4-aminobenzoate → HCID 50851046, compound

Participants

Reaction Steps

Methyl 4-amino-benzoate (3.58 g, 23.70 mmol) and N-Boc glycine (4.15 g, 23.70 mmol) were stirred in DMF (50 mL) at room temperature. BOP (11.52 g, 26.07 mmol) was added followed by the addition of DIEA (6.18 mL, 35.55 mmol). The resulting mixture was stirred at rt for 1.5 h. It was quenched with sat'd NaHCO3 and EtOAc. The organic layer was washed with H2O, brine (3×), dried (MgSO4), and concentrated to dryness to give 4-(2-tert-butoxycarbonylamino-acetylamino)-benzoic acid methyl ester (7.18 g, yield: 98%). 1H NMR (CDCl3) δ 9.16 (s, br, 1H), 7.96 (d, J=8.4 Hz, 2H), 7.65 (d, J=8.4 Hz, 2H), 3.98 (s, 2H), 3.89 (s, 3H), 1.45 (s, 9H) ppm.

Provenance & Evidence