Topic: Alpha-hydrogen acidity, aldol, Cannizzaro, haloform· Organic Compounds Containing Oxygen
The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha-carbon, is :
1. a carbonyl compound with a hydrogen atom on its alpha-carbon never equilibrates with its corresponding enol.
2. a carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as aldehyde-ketone equilibration.
3. a carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as carbonylation.
4. a carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as keto-enol tautomerism.