Acetyl chloride → 2-Ethanoyloxy-5-tert-butoxycarbonylaminobenzoic acid

Participants

Reaction Steps

To a solution of 5-tert-butoxycarbonylamino-2-hydroxybenzoic acid (1.02 g, 4.02 mmole) in DMF (20.0 ml) was added with acetyl chloride (39 mg, 4.83 mmole) and potassium carbonate (555 mg, 4.02 mmole). The reaction mixture was stirred for 4 hr at room temperature. After the reaction mixture was concentrated, the residue was dissolved in ethyl acetate. The organic layer was washed with water and brine and dried over anhydrous Na2SO4. After evaporation of the solvent, the residue was recrystallized from ethyl acetate/hexane to give 0.62 g (52% yield) of 2-ethanoyloxy-5-tert-butoxycarbonylaminobenzoic acid as a white solid.

Provenance & Evidence