Which of the following reacts with benzene in presence of anhydrous aluminum chloride and forms acetophenone?

• A

  $\mathrm{CH}_3 \mathrm{Cl}$
• B

  $\mathrm{CH}_3 \mathrm{COOH}$
• C

  $\mathrm{CH}_3 \mathrm{CHO}$
• Correct answer
  D

  $\mathrm{CH}_3 \mathrm{COCl}$

Solution

Friedel-Craft Acylation : It involves the treatment of benzene with acetyl chloride or acetic anhydride in presence of aluminum chloride.

Hence, the correct answer is option: 'D'.