Single‐Crystal X‐ray Diffraction and Solution Studies of Anion–π Interactions in N‐(Pentafluorobenzyl)pyridinium Salts
Syntheses Using Pyridinium Salts(IV)
From Pyridinium Salts and Hydroxylamine
By Displacement from Pyridinium Salts
Base-Induced Cyclizations of Pyridinium Salts