This article focus to Discuss on Friedel‐Crafts Acylation Reaction. The Friedel‐Crafts acylation reaction, another example of the electrophilic aromatic substitution response, is similar to the particular Friedel‐Crafts alkylation reaction except which the substance that reacts with benzene is usually an acyl halide. The remainder from the mechanism is identical compared to that of the alkylation of benzene. Because the acylium ion is usually resonance stabilized, no rearrangements happen.