Question

How to convert acetaldehyde to crotonaldehyde

Answer 1

It is aldol condensation reaction.

Answer 2

Answer: By aldol condensation reaction, acetaldehyde can be converted into crotonaldehyde.

Explanation:

When two molecules of an aldehyde or a ketone combines to form a $\beta$ - hydroxy aldehyde or $\beta$ -hydroxy ketone, followed by dehydration to give a conjugated alkene. This reaction is carried out in alkaline medium. This reaction is named as aldol condensation reaction.

The reaction 2 moles of acetaldehyde reacting together to form crotonaldehyde is given in the image below.