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Which of the following conversion repres...

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

N - acylated phenol to C - acylated phenol

D

C - acylated phenol to N - acylated phenol

Text Solution

Verified by Experts

The correct Answer is:
A
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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