Out of benzaldehyde and propionaldehyde,...

Out of benzaldehyde and propionaldehyde, which is mre reactive towards nucelophilic addition?

Text Solution

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Propionadehyde is more reactive than benzaldehyde towards nucleophilic addition. Actually, in benzaldehyde the aldehyic group has -M (mesomeric) effect. As a result the electron density on the carbonyl carbon atom tends to increase and the nucleophile attack is more difficult as compared to propionaldehyde where alkyl group is attached to the aldehydic group. for more details, consult section 8.

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Knowledge Check

Which is most reactive towards nucleophilic addition reactions?

A

Ethyl acetate

B

Acetic anhydride

C

Acetamide

D

Acetyl chloride

Which one is most reactive towards nucleophilic addition reaction?

A

B

C

D

Which one is most reactive towards nucleophilic addition reaction?

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B

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D

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