Methanol → HCID 54552579, compound

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Reaction Steps

30 g of 3,5-dinitro-4-phenoxy-benzoic acid in 200 ml of methanol are combined with 3 ml of concentrated sulphuric acid and the whole is boiled for 3 hours under reflux. After evaporation of the solvent, the residue is dissolved in ethyl acetate, and traces of unreacted acid are destroyed with dilute sodium bicarbonate solution. After drying of the ethyl acetate solution, the solvent is eliminated by evaporation, the residue is recrystallised from ethyl acetate/methanol. The desired ester melting at 171°-173° C is obtained with a very good yield.

Provenance & Evidence