Question

Question: Which carbonyl compounds do not undergo an aldol reaction when treated with OH^- in H₂O ?

Short answer

Answer

1. No
2. Yes
3. No
4. Yes

Step-by-step solution

Aldol reaction

This reaction is either carried out with ketone or aldehyde. However, the alpha hydrogen must be present in the compound.

Explanation

a. The given compound does not have α hydrogen. Thus, it will not provide an aldol reaction.

b. The given compound has α hydrogen, as shown below. Thus, it will not provide an aldol reaction.

Given compound in b

c. The given compound does not have α hydrogen. Thus, it will not provide an aldol reaction.

d. The given compound has α hydrogen, as shown below. Thus, it will not provide an aldol reaction.

Given compound in d