explain friedel craft's alkylation reaction.
Friedal and Craft demonstrated that benzene would react with acyl halides (or acid halide) in the presence of a Lewis acid as catalyst (e.g. anhydrous aluminium chloride ,AlCl3) to produce acyl benzenes (or phenyl ketone).
This reaction became known as Friedal-Crafts acylation.
An acyl group is a substituent which contains an alkyl group bound to a carbonyl group.
For example,reaction of benzene with acetyl chloride gives Acetyl benzene (Acetophenone).
Mechanism: