126 126 fredel crafts alkylation of benzene friedel

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Unformatted text preview: Alkylation of Benzene Friedel-Crafts Alkylation of Benzene Reaction equation: Mechanism of formation on the electrophile: Mechanism of Friedel-Crafts Alkylation Step 1. Addition of the electrophile. Step 2. Deprotonation. Mechanism of Friedel-Crafts Alkylation Primary and methyl cations are too unstable to be formed so the Lewis acid-base complex is the effective electrophile. Friedel-Crafts Alkylation and Rearrangements Rearrangements occur especially with primary alkyl halides. The electrophile is formed by hydride migration to form a more stable cation. Alternative Sources for Carbocat...
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