Alkyl Halides and Aryl HalidesHard

Question

The major product obtained on the monobromination (with Br2/FeBr3) of the following compound a is :
         

Options

A.
B.
C.
D.

Solution

The reaction is an example of electrophilic aromatic substitution.Although both OCH3 and CH3 groups are o, p-directing, the OCH3 group dominates. Product (d) is favoured because the new coming group (Br) experiences least hindrance.

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