Question

oxidation of toluene with carbonyl chloride gives benzaldehyde this reaction is known as

Answer 1

so the answer is Etard reaction.

The Etard reaction is a chemical reaction that involves the direct oxidation of an aromatic or heterocyclic bound methyl group to an aldehyde using chromyl chloride. For example, toluene can be oxidized to benzaldehyde.

Answer 2

The oxidation of toluene to benzaldehyde by chromyl chloride is called ETARD REACTION.