I need to propose a route for the synthesis of 2-(bromomethyl)benzonitrile from 1-bromo-2-(bromomethyl)benzene. In the attached figure, the structure of the starting compound and the species to be obtained are indicated.
I thought it could be done by treatment with NaCN in acetone. But, under those conditions, my teacher has told me that you replace the bromine attached to the methyl, since aryl halides hardly undergo substitution reactions.
So I really don't know very well how it could be done. I hope you can help me.