Identify the most likely position for monobromination

Identify the most likely position for monobromination

Solution: The benzene ring on the right has a deactivating group (acyl) and an activating group (OR). The benzene ring on the left has only one activating group (OR) and therefore is more ready to react. OR group is ortho/para direction and para position is usually major.

Identify the most likely position for monobromination solution

Review the Benzene Reactions

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