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Question
Write the equation of the following reaction:
Bromination of anisole in an ethanoic acid medium.
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Solution
Phenylalkyl ethers undergo the usual halogenation in the benzene ring; e.g., anisole undergoes bromination with bromine in ethanoic acid even in the absence of iron (III) bromide catalyst. It is due to the activation of the benzene ring by the methoxy group. Para isomer is obtained in 90% yield.
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