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Q.
What is the main reactant in the prepartion of benzaldehyde by Etard's reaction?
NTA AbhyasNTA Abhyas 2022
Solution:
Toluene can be oxidized to benzaldehyde with a solution of chromyl chloride $\left(C r O_{2} C l_{2}\right) \, in \, CS_{2} \, or \, CCl_{4}.$ This is known as Etard's reaction.
Further oxidation of benzaldehyde to benzoic acid is avoided by protection of carbonyl group.
