When installing a substituent on a benzene ring that already has 2 substituents on it, my textbook says that the stronger activator will determine where the new substituent is installed. What about in the case of the a benzene ring that has 2 deactivators? What is the rule in that case? Does the stronger deactivator determine where the new substituent is installed? How does that work?
Here is an example of what im talking about:
React the following ring with CH3Br, AlBr3


When installing a substituent on a benzene ring that already has 2 substituents on it, my...
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