Question: Rationalise the following observation using valence-bond structures for the possible intermediates. Pyrrole undergoes electrophilic substitution easily and predominantly in the 2- position. (6 marks) E+

Rationalise the following observation using valence-bond structures for the possible intermediates. Pyrrole undergoes electrophilic substitution easily and predominantly in the 2- position. (6 marks)

E+ Z- Z-

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