Which of the following compounds would undergo Aldol condensation, which the Cannizzaro reaction and which neither ? Write the structures of the expected produces of aldol condensation and Cannizzaro reaction : (i) Methanal (ii) 2-Methylpentanal (iii) Benzaldehyde (iv) Benzophenone (v) Cyclohexanone (vi) 1-Phenylpropanone (vii) Phenylacetaldehyde (viii) Butan-1-ol (ix) 2,2 Dimethylbutanal.

Which of the following compounds would undergo Aldol condensation, whi

1.	Which of the following compounds would undergo Aldol condensation, which the Cannizzaro reaction and which neither ? Write the structures of the expected produces of aldol condensation and Cannizzaro reaction : (i) Methanal (ii) 2-Methylpentanal (iii) Benzaldehyde (iv) Benzophenone (v) Cyclohexanone (vi) 1-Phenylpropanone (vii) Phenylacetaldehyde (viii) Butan-1-ol (ix) 2,2 Dimethylbutanal.
Answer» Solution :(i),(iii) and (ix) will give Cannizzaro reaction DUE to absence of `alpha`-HYDROGE. (ii),(V),(VI) and (vii) will give aldol condensation due to presence of `alpha`- hydrogen. (iv) and (viii) will neither undergo Cannizzaro's reaction nor Aldol condensation because benzophenone does not give `alpha`-hydrogen and butanol is alcohol , not ALDEHYDE which cannot undergo aldol condensation.