Beta keto acids

Why are beta keto acids unstable?
Or the other way round....Why do beta keto acids undergo decarboxylation easily?
Can't just find a good reason for this.....

1 Answers

996
Swarna Kamal Dhyawala ·

Decarboxylation is easy for beta-keto acids because the ANION INTERMEDIATE is STABILIZED BY RESONANCE or the acid forms a more STABLE CYCLIC INTERMEDIATE via intramolecular H-bonding.During this process, CO2 is lost and the orginal beta-keto acid is converted into a ketone

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