Pyridine N-Oxide – Cleavage of N-oxide

NOTE: Important charges and non-bonding electrons are shown throughout the animation except during the transition phase

Click the structures and reaction arrows to view the 3D models and animations respectively

Cleavage of the N-oxide bond usually occurs using trivalent phosphorus compounds. The phosphorus donates its lone pair of electrons whilst accepting a pair of electrons into a d orbital. The formation of the strong P=O bond is a driving force for the reaction.

Back to Aromatic Heterocycles


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