Arndt-Eistert · Grow an Acid by One Carbon
unseel.com · RCOOH → RCH₂COOH · Wolff rearrangement
Carbons n
Stage 0 / 8
Step carboxylic acid
Carbon (R skeleton)
Oxygen
Diazo / N₂
New CH₂ (from CH₂N₂)
Migrating bond / ketene
Unseel.com · Arndt-Eistert