Question

The IUPAC name of the product Z in the reaction sequence is:

• A. But-2-enal
• B. 4-Methylpent-3-enal
• C. 4-Methylpent-3-en-2-one
• D. 2-Methylpent-2-enal

Hint:

In aldol condensation, ketones or aldehydes undergo self-condensation in basic medium to give $\alpha,\beta$-unsaturated carbonyl compounds.

Answer 1

The Correct Option is C

The reaction proceeds through the following steps: 1. Hydration of propene gives a major alcohol (2-propanol), which is oxidized to acetone (Y). 2. Aldol condensation of two acetone molecules in the presence of Ba(OH)$_2$ and heat results in 4-methylpent-3-en-2-one as the product Z.