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Question

Predict the product 'P' of the given reaction.

A
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B
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C
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D
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Solution

The correct option is D

It is a cross aldol condensation of ketone with aldehyde of no α-Hydrogens. This reaction is called as Claisen Schmidt reaction.

Mechanism of Claisen Schmidt reaction:
1. Formation of enolate ion: The base will abstract the α-hydrogen and forms a enolate.
2. Addition of enolate: The enolate will attack the carbonyl carbon of aldehyde to form aldol.
3. Dehydration: Water is removed from the aldol to form α,β unsaturated ketone.


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