Question #bb218

1 Answer
Jun 13, 2015

a] Toluene, when treated with #"Br"_2"/Fe"# ,gives p-bromotoluene as the major product because the #"CH"_3# group is para directing.


The methyl group of toluene can donate electron density to the benzene ring by hyperconjugation.

This puts extra electron density on the ortho and para carbons and makes them more susceptible to attack by an electrophile.

So #"CH"_3# is an ortho-para directing group.