Question

The oxidation of toluene to benzaldehyde by chromyl chloride is called

• A. Etard reaction
• B. Riemer-Tiemann reaction
• C. Wurtz reaction
• D. Cannizzaro’s reaction

Answer 1

Answer: (A)

Etard reaction

Answer 2

The oxidation of toluene $\left( C _{6} H _{5} CH _{3}\right.$ with chromyl chloride $\left( CRO _{2} Cl _{2}\right)$ in $CCl _{4}$ or $CS _{2}$ to give benzaldehyde is called the Etard reaction. In this reaction, the chromyl chloride first forms a brown complex, which is separated and then decomposed with $H _{2} O$ to give benzaldehyde $\left( C _{6} H _{5} CHO \right)$

Discover More Topics from This Chapter:Aldehydes, Ketones, and Carboxylic Acids