Question

In Etard's reaction, toluene is oxidized to benzaldehyde by

• A. \( H_2O_2 \)
• B. \( CrO_2Cl_2 \)
• C. \( Cl_2 \)
• D. \( KMnO_4 \)

Hint:

Etard's reaction is a mild oxidation method used to convert toluene to benzaldehyde.

Answer 1

The Correct Option is B

Step 1: In Etard's reaction, toluene is selectively oxidized to benzaldehyde using chromyl chloride (\( CrO_2Cl_2 \)). 

Step 2: The reaction proceeds as: \[ C_6H_5CH_3 + CrO_2Cl_2 \rightarrow C_6H_5CHO \]