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Mutarotation

Do electron w...

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Do electron withdrawing group increases reactivity towards nucleophilic addition reaction than electron donating group ? Is comparsion between benzaldehyde and propanal a exception to this?

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Arrange the following compounds in increasing order of their reactivity in nucleophilic addition reactions.

(i) Ethanal, Propanal, Propanone, Butanone.

(ii) Benzaldehyde, p-Tolualdehyde, p-Nitrobenzaldehyde, Acetophenone.

Hint: Consider steric effect and electronic effect.

Q. Assertion :Benzaldehyde is more reactive than ethanol towards nucleophilic attack. Reason: The overall effect of

- I

+ R

of phenyl group decreases the electron density on the carbon atom of group in benzaldehyde

Q. Choose the correct option regarding

S_{n} A r

i.e. Nucleophilic Aromatic Substitution reaciton:
Here
EWG- Electron withdrawing group
EDG- Electron donating group

Q. During the Hunsdiecker reaction, if the aromatic ring contains electron-donating group rather than the electron-withdrawing group then:

Q. Arrange the following compounds in increasing order of their reactivity in nucleophilic in nucleophili addition reaction:
(i) Ethanal, propanal, propanone, Butanone.
(ii) Benzaldehyde,

p -

p -

Nitrobenzeldehyde, Acetophenone.

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