The Wolff Rearrangement · Diazoketone → Ketene
unseel.com · R-CO-CHN₂ → R-CH=C=O · Arndt-Eistert
Species α-diazoketone
N₂ lost no
Stage reactant assembled
R group (migrates)
Carbon
Oxygen
Diazo nitrogen (N₂)
Nucleophile (H₂O)
Unseel.com · Wolff Rearrangement