Synthesis of 4-fluorobenzoate from 4-fluorobenzoic acid: Procedure 4-fluorobenzoic acid (15g) was taken in a round bottom flask (250ml) and dissolved in 60ml of absolute Ethanol. Then 7.5ml of H2SO4 was added and shake it well. A condenser was used to reflux it for 7-8 hrs. The progress of reaction was monitored from time to time by using Ethyl acetate and n-hexane with the help of TLC. The gradual completion of reaction was checked. The final product formation i.e. 4-fluorobenzoate and its purity was checked by TLC & observing it under UV lamp. After the completion of reaction 5ml of 10% solution of Na2CO3 was added to remove un-reacted acid. Then chilled water was added and rested it for some time to perform solvent extraction as ester of 4-fluorobenzoic acid is not solid.
