Question

Which of the following does not undergo Cannizzaro reaction?

• A. Benzaldehyde
• B. $2$-Methylpropanal
• C. $p$-Methoxybenzaldehyde
• D. $2,2$-Dimethylpropanal

Answer 1

Answer: (B)

$2$-Methylpropanal

Answer 2

Aldehydes containing no $\alpha-H$ atoms on heating with concentrated alkali solution $(50\%)$ undergo Cannizzaros reaction. In this reaction one molecule is oxidised at the expense of other which is reduced to alcohol.