Q55 / 180 · COMEDK 2021 · Chemistry
What is the product formed when benzene react with $\mathrm{CO}$ and $\mathrm{HCl}$ in presence of anhydrous $\mathrm{AlCl}_{3}$ ?
- Correct answerA
- B
- C
- D
Solution
The reaction of benzene with carbon monoxide (CO) and hydrogen chloride (HCl) in the presence of anhydrous aluminum chloride ($AlCl_3$) and cuprous chloride ($CuCl$) is known as the Gattermann-Koch reaction.
This reaction is a form of Friedel-Crafts acylation that introduces a formyl group ($-CHO$) onto the benzene ring to produce benzaldehyde.
The reaction mechanism involves the formation of the formyl cation ($HCO^+$) in situ, which acts as the electrophile and attacks the benzene ring to form benzaldehyde.
Answer:
This reaction is a form of Friedel-Crafts acylation that introduces a formyl group ($-CHO$) onto the benzene ring to produce benzaldehyde.
The reaction mechanism involves the formation of the formyl cation ($HCO^+$) in situ, which acts as the electrophile and attacks the benzene ring to form benzaldehyde.
Answer:
Hence, the correct answer is option: 'A'.