# Electrophilic Aromatic Substitution

I am having trouble understanding how this reaction works or how an electrophile is formed. I feel like the product should be something like $$\ce{C11H12O4}$$

• This looks like a Friedel-Crafts acylation to me. Maybe it all becomes clear after visiting the Wikipedia page. – tschoppi Feb 11 '14 at 14:29

Do you remember the role of $\ce{AlCl3}$ in electrophilic aromatic substitutions? Where could it possible attack here?