Pyrrole, thiophene and furan are not attacked by nucleophiles due to the strong electron density of the ring (excent p systems). Therefore, nucleophilic addition reactions, characteristic of p- deficient systems such as pyridine, quinoline and isoquinoline, are not observed.
nucleophilic addition
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- Germán Fernández
- PYRROL, THIOPHENE AND FURAN THEORY
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