It is a kind of organic associating reaction that utilizes an electrophilic aromatic substitution to fasten substituents to aromatic rings. Alkylation and acylation procedures are the two most familiar Friedel Crafts reaction. In Friedel Crafts reaction, Friedel-Crafts Alkylation refers to the alteration of an alkyl fraction for an aromatic proton. With the help of a carbocation, an electrophilic strike on the aromatic ring. The Friedel-Crafts alkylation reaction requires alkyl halides as substrates to generate alkylbenzenes. In this type of reaction, a Lewis acid stimulus such as FeCl3 or AlCl3 is employed to enable the elimination of the halide to induce a carbocation. Before proceeding with the alkylation point, the consequent carbocation withstands a rearrangement. An acyl group is augmented to an aromatic ring in the Friedel-Crafts acylation method. Commonly, an acidic chloride is used and a Lewis acid catalyst, such as AlCl3, is used. The aromatic ring is restored to a ketone via a Friedel-Crafts acylation technique. Friedel-Crafts acylations involve an acid anhydride that can be utilized instead of acyl halide. The acyl halide’s halogen constructs a complex with the Lewis acid, resulting in a highly electrophilic acylium ion with the comprehensive formula RCO+ which is stabilized.
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