Question

Which of the following does not undergo Cannizzaro reaction?

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

Answer 1

The correct option is B 2-Methylpropanal

The Cannizzaro reaction, named after its discoverer Stanislao Cannizzaro, is a chemical reaction that involves the base-induced disproportionation (self oxidation and self reduction) of an aldehyde lacking a hydrogen atom in the alpha position. Except option (b) all other options lacks alpha hydrogen. Thus, (a), (c) and (d) undergoes cannizzaro reaction. Hence, the correct answer is option (b).