[June]

Reaction

I'm stumped. I understand that the methylphenyl group would be ortho-directing (because the para position is occupied) and the carbonyl group is meta-directing, so I know where the substitution will occur. I'm just stumped as to what the electrophile is and how it will attach. Thanks for the *delete me*

[mana]

electrophile is something with lack of electron so it likes electron. in the following links you can find more explanation and the mechanism of EAS
https://en.wikipedia.org/wiki/Electrophilic_aromatic_substitution
http://www2.chemistry.msu.edu/faculty/reusch/VirtTxtJml/benzrx1.htm