Illustrated to the right is the nitration of benzene, which produces a reaction that goes through several stages. Initially (A), the entering group approaches and associates weakly with the benzene ring (B). Then, rearrangement produces an unstable high-energy intermediate (C), which breaks down to a complex (D) in which the leaving group is weakly associated with the ring. It ends with the departure of the leaving group (E).
Related category• ORGANIC CHEMISTRY
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