Single Choice

The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha carbon, is :

Aa carbonyl compound with a hydrogen atom on its alpha-carbon never equilibrates with its corresponding enol
Ba 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
Ca carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as carbonylation
Da 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
Correct Answer

Solution

The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha carbon, is given by the option D. "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." For example, the keto enol tautomerism for acetaldehyde is as shown. $$\displaystyle CH_3CHO A\rightleftharpoons CH_2=CHOH$$ The inter conversion of the two forms (keto and enol) involves the movement of an alpha hydrogen and the shifting of bonding electrons.

SIMILAR QUESTIONS

Organic Chemistry

Which of the following pairs of compounds are tautomers?

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Which of the following statements are correct?

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Write tautomeric form of phenol.

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