The cannizzaro reaction is a redox reaction. Two molecules ( aliphatic and aromatic aldehydes ) of an aldehyde are reacted to produce a alcohol and carboxylic acid in the presence of strong base.
a - Keto aldehydes give the product of an intramolecular disproportionation in excellent yields.
Nucleophilic addition of OH- to aldehyde.
The Crossed cannizzaro reaction, uses formaldehyde as reducing agent.
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