SEARCH Articles Figures Tables 7-Substituted pyridines Nucleophilic substitution—continued Nucleophilic substitution—continued of pyridine N-oxides, kinetics for Nucleophilic substitution—continued of pyridines Pyridine nucleophilic substitution Pyridines nucleophilic Pyridines substitution Pyridines—continued Pyridines—continued nucleophilicity Pyridine—continued nucleophilic substitution of, kinetics