SEARCH Articles Figures Tables Aromatic Heterocycles Pyridine and Pyrrole Aromaticity, cycloheptatrienyl cation pyrrole and Electrophilic Attack on N Aromatics Pyrrole and Pyridine Electrophilic aromatic substitution pyrrole and Nucleophilic Attack on N Aromatics Pyrrole and Pyridine Protection for Imidazoles, Pyrroles, Indoles, and other Aromatic Heterocycles Pyridine and Pyrrole Two Aromatic Heterocycles Pyrrole aromaticity Reactions of Pyrrole-2-carbaldehydes with Aromatic Di- and Tetraamines