Question

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.

Answer 1

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Ethanal < Propanal < Propanone < Butanone

Acetophenone < p-tolualdehyde < Benzaldehyde < p-nitrobenzaldehyde.

Answer 2

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.

Ans -Ethanal < Propanal < Propanone < Butanone .

Acetophenone < p-tolualdehyde < Benzaldehyde < p-nitrobenzaldehyde.