Question

Aromatic substitution reactions occur by the addition of an electrophile such as ${\mathbf{Br}}^{+}$to an aromatic ring to yield an allylic carbocation intermediate, followed by loss of ${\mathbf{H}}^{+}$. Show the structure of the intermediate formed by the reaction of benzene with ${\mathbf{Br}}^{+}$.

Short answer

Formation of electrophile

Formation of allylic carbocation

Step-by-step solution

Aromatic substitution

Electrophilic aromatic substitution in organic reactions is those in which an atom on the aromatic ring is replaced by an electrophile.

Intermediate carbocation

The intermediate allylic carbocation formed in the addition of electrophile${\mathrm{Br}}^{+}$is as follows:

Formation of allylic carbocation