4-Aminobenzoic Acid → HCID 4387480, compound

Participants

Reaction Steps

4-Aminobenzoic acid (0.50 g, 3.6 mmol) was added to a solution of Meldrum's acid (0.63 g, 4.4 mmol) in toluene (5.0 mL) and treated according to Procedure 1. 4-[(Carboxyacetyl)amino]benzoic acid (0.74 g, 91%) was obtained as a colourless solid; δH (400 MHz, DMSO-d6) 3.38 (br s, 2H, CH2), 7.68 (t, J2,3=J5,6=8.0 Hz, 1H, H2, H6), 7.89 (d, J2,3=J5,6=8.0, 1H, H3, H5), 10.44 (s, 1H, NH), 12.70 (br s, 1H, CO2H).

Provenance & Evidence