Keywords: Pyridine-EAS-4-position-2D-skeletal.png Skeletal formulae depicting the addition of an electrophile to pyridine in the 4 position and the resonance structures of the intermediate formed Image constructed in ChemDraw Ultra 11 and Photoshop Own 2009-01-13 Ben Mills Benjah-bmm27 Images by Ben Mills Reactions of pyridine |