Question

# Benzyl alcohol and sodium benzoate is obtained by the action of sodium hydroxide on benzaldehyde. This reaction is known asA. Perkin reactionB. Cannizzaro’s reactionC. Sandmeyer’s reactionD. Claisen reaction

Hint: We know that Cannizarro reaction is the disproportionation of two non-enolizable aldehydes in the presence of a base to give a primary alcohol and a carboxylic acid.

Benzyl alcohol and sodium benzoate is obtained by the reaction of benzaldehyde with sodium hydroxide. This is an example of Cannizzaro reaction. In this reaction, primary alcohol and sodium salt of carboxylic acid are obtained. The reaction can be shown as below:

Hence, the correct option is B.

Option A is the Perkin reaction. In the Perkin reaction, an aromatic aldehyde and acid anhydride undergoes aldol condensation in presence of alkali salt of the acid to produce $\alpha ,\beta$-unsaturated aromatic acid.
Option C is the Claisen reaction. The Claisen condensation is a reaction in which formation of carbon–carbon bond occurs between one ester and one carbonyl compound or between two esters in the presence of a strong base to form a $\beta$-keto ester or a $\beta$-diketone.