AP EAMCET · Chemistry · Carboxylic Acid Derivatives
Which of the following conversion represents Fries rearrangement?
- A O-acylated phenol to C-acylated phenol
- B C-acylated phenol to O-acylated phenol
- C \(\mathrm{N}\)-acylated phenol to \(\mathrm{C}\)-acylated phenol
- D C-acylated phenol to \(\mathrm{N}\)-acylated phenol
Answer & Solution
Correct Answer
(A) O-acylated phenol to C-acylated phenol
Step-by-step Solution
Detailed explanation
Key Idea Fries rearrangement is a rearrangement of reaction of phenolic ester to a hydroxyl aryl ketone by catalysis of Lewis acid. From the given options, (a) represents Fries rearrangement, i.e. O-acylated phenol to C-acylated phenol. The reaction can be written as follows :
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