Deprotonation 124 124 sulfonation of benzene

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Unformatted text preview: on. 12.4 12.4 Sulfonation of Benzene Sulfonation of Benzene Sulfonation Can be performed with sulfuric acid and heat or sulfur trioxide and sulfuric acid. Sulfonation of Benzene Sulfonation The electrophile is sulfur trioxide which has a positively charged sulfur. Mechanism of Sulfonation Mechanism Step 1. Addition of the electrophile. Step 2. Deprotonation of the σ-complex. Step 3. Protonation of the sulfonate. 12.5 12.5 Halogenation of Benzene Bromination of Benzene Bromination Reaction equation: Formation of the electrophile: Lewis acid-base complex the active electrophile Mechanism of Bromination Mechanism Step 1. Addition of the elec...
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