Question

This question comes from a lab where you will be synthesizing acetyl ferrocene from ferrocene via a Friedel-Crafts acylation.

If you were to compare the rates of acylation of ferrocene and acylation of benzene, the ferrocene would react much faster. What does this tell you about the electron density of the cyclopentadienyl rings on the ferrocene? (The best answers will likely use resonance structures to show how the electron density is distributed in both ferrocene and benzene.)

Only answer if you can provide the resonance structures and describe in detail