Question

These questions pertain to a general Friedel-Crafts Acylation : An aromatic ketone product was produced from reacting a mono-substituted benzene derivative (formula C7H8O) with an acid chloride (formula of C4H7OCl and density of 1.017) in the presence of FeCl3.

1. During the reaction, a TLC of the reaction mixture shows that there are two spots on the plate. Without comparing with the standards, are you able to identify which is the product? Assume the two spots on TLC plate refer to the starting benzene derivative and final product. Briefly explain.

2. Explain why only monoacylation product usually obtained in this Frieldel-Crafts Acylation under the reaction condition even with some excess amount of the acyl chloride added.

Answer 1