Anthranilic Acid → Anthranilic acid, N-o-nitrophenyl-

Participants

Reaction Conditions

Reaction Steps

1-Fluoro-2-nitro-benzene (0.53 mL, 5.0 mmol), 2-Amino-benzoic acid (750 mg, 5.5 mmol) and Na2CO3 (420 mg, 4.0 mmol) are added together in reaction flask and the mixture is heated at 130° C. for 60 hrs. After it is cooled down to room temperature, 50 mL of water is added and HOAc is used to adjust the pH to slightly acidic. Then the mixture is extracted with EtOAc (3×50 mL) and the organic layers are combined, washed with water (3×50 mL), dried (Na2SO4) and concentrated to give crude product. Purifiction by flash column chromatography affords 560 mg (43%) of 2-(2-Nitro-phenylamino)-benzoic acid.

Provenance & Evidence