Chapter 6, Problem 32P

Interpretation Introduction

Interpretation:

The ketones which are formed in the acid-catalysed hydration of given compound should be determined.

Concept Introduction:

Acid Catalysed addition of water: When water is added to alkyne in the presence of an acid, the product formed will be an enol. Enol contains a double bond and $\text{OH}$ group. The $\text{OH}$ group is bonded to one of the ${\text{sp}}^{\text{2}}$ carbons.

If a carbonyl group is bonded to two alkyl groups, it is called as a ketone. The enol formed in the acid catalysed addition of water will be easily converted into ketone.

Conversion of terminal alkynes into enol: If we want to convert terminal alkyne into an enol, the presence of mercuric ion as a catalyst should be needed and the catalyst will increase the rate of the reaction.