Benzene and its Reactions Basic knowlege on the reactions of beneze along with the nature of it. 3.0 / 5 based on 3 ratings ? ChemistryArenesA2/A-levelAll boards Created by: ChemNerdCreated on: 26-02-11 00:44 Structure of benzene Has a delocalised electron cloud above and below the ring Thus making it susceptible to electrophillic attack It undergoes electrophillic substitution as addition will create instability of the delocalised electrons It is generally much less reactive in comparison to alkenes Non polar compounds with weak intermolecular forces The larger the molecules the higher the boiling temperatures 1 of 4 Halogenation- substitution To react with bromine Warm benzene and bromine with Fe or FeBr3 To react with chlorine Warm with iron, iron(3)chloride, or aliminuium chloride 2 of 4 Nitration Warm benzene at 55 degrees with conc nitric acid in the presence of conco sulfuric acid if higher temp further nitration would occur 3 of 4 Sulfonation Use FUMING sulfuric acid( a mixture of sulfuric acid dissolved in sulfur trioxide) Reaction forms bensenesulfonic acid. SO3 molecules are strongly polarised so they attack the delocalised electrons 4 of 4
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