In which of the following reaction alkyl ketones are converted into carboxylic acid with one carbon atom less than the parent compound?
Correct answer: A. Haloform
- A. Haloform
- B. Cannizzaro
- C. Aldol
- D. None of these
Explanation
The haloform reaction is a specific reaction of methyl ketones (R-CO-CH3) and certain other compounds containing a CH3CO- group. In this reaction, the methyl ketone is treated with a halogen (like bromine or chlorine) in the presence of a base. This results in the formation of a haloform (CHX3, where X is a halogen) and a carboxylate salt with one less carbon atom than the original ketone.
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About Aldehydes and Ketones
Aldehydes and ketones contain the polar carbonyl group, but aldehydes are generally more readily oxidised and more reactive than ketones. Coverage includes preparation by oxidation or reduction routes, nucleophilic addition of reagents such as hydrogen cyanide and bisulfite, and tests that distinguish aldehydes from ketones.
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