Question

Principle of synthesis of benzoic acid from benzyl chloride

Answer 1

Answer:

⏩Benzoic acid is purified by crystallization from hot water yielding product, which melts at 121° C. 5 g of benzyl chloride and 4 g of anhydrous sodium carbonate in 50 ml of water are mixed in a round flask attached to a reflux condenser, and boiled gently.⏪

Answer 2

The Principle of synthesis of Benzoic acid from benzyl chloride is:

• Fission of the side chains, like between the first and the second carbon atom from the benzene ring and first carbon atom, occurs when oxidation of the aromatic compound happens.
• it leads to the formation of carboxyl(-COOH) group.
• the oxidation process takes place in the presence of $KMnO_{4}$ and $Na_{2}CO_{3}$.
• Here benzyl chloride is first hydrolyzed to benzyl alcohol, and then it undergoes oxidation to the respective carboxylic acid.
• Benzene chloride is used as it can be easily oxidized the presence of an aqueous oxidizing agent.