What is the role of acetic acid in a bromination reaction with anisole?

1 Answer
Truong-Son N.
Aug 13, 2016

It's just a solvent to dissolve anisole (both are polar). That is, if you meant glacial (anhydrous) acetic acid. It's also easily removed in an aqueous workup, given that it is polar and thus should dissolve in water.

Anisole is a benzene ring containing the methoxy group, which is an activating group (an ortho/para director) with respect to electrophilic aromatic substitution. Thus, the bromination reaction does not require #"FeBr"_3# to be the catalyst, when it would on plain old benzene.

So, your products would still be the ortho (1,2-) and para (1,4-) isomers of bromomethoxybenzene.

Related questions
See all questions in Quick Introduction of Structures
Impact of this question
13812 views around the world
You can reuse this answer
Creative Commons License