So AlBr3, our catalyst has been reformed in this reaction. And so that's the mechanism for the bromination of benzene. If you wanted to think about adding other halogen onto your benzene ring, let's go ahead and look at chlorination here. So if we started with a benzene ring, and we wanted to put a chlorine on our benzene ring, we would add ... The mechanism for nitration of benzene: Step 1: Nitric acid accepts a proton from sulphuric acid and then dissociates to form nitronium ion. Step 2: The nitronium ion acts as an electrophile in the process which further reacts with benzene to form an arenium ion. Step 3: The arenium ion then ...

Sulfonation of Benzene Sulfonation is a reversible reaction that produces benzenesulfonic acid by adding sulfur trioxide and fuming sulfuric acid. The reaction is reversed by adding hot aqueous acid to benzenesulfonic acid to produce benzene. Apr 04, 2018 · Nitration of benzene. When benzene is treated with concentrated nitric acid and concentrated sulphuric acid at below 55 o C temperature, nitrobenzene is formed. If we increase the temperature there is a greater chance of entering more than one nitro group in the benzene ring. The elctrophilic substitution reaction mechanism for nitration of benzene