Chapter 14, Problem 14.9P

Interpretation Introduction

(a)

Interpretation:

The alkyne from which the $\text{pentan-2-one}$ can be prepared by acid-catalyzed reaction is to be stated.

Concept introduction:

An alkyne can be converted into aldehyde and ketone by hydration reaction. In hydration reaction, mercuric ion with a dilute acid is used to carry out the reaction. Mercuric ion is used as a catalyst. After the protonation of the alkynyl carbon, the water attacks as the nucleophile and an enol is formed. Enol is unstable and converts into a stable aldehyde or ketone.

Interpretation Introduction

(b)

Interpretation:

The alkyne from which the $\text{3, 3-dimethylbutan-2-one}$ can be prepared by acid-catalyzed reaction is to be stated.

Concept introduction:

An alkyne can be converted into aldehyde and ketone by hydration reaction. In hydration reaction, mercuric ion with a dilute acid is used to carry out the reaction. Mercuric ion is used as a catalyst. After the protonation of the alkynyl carbon, the water attacks as the nucleophile and an enol is formed. Enol is unstable and converts into a stable aldehyde or ketone.

Interpretation Introduction

(c)

Interpretation:

The alkyne from which the $\text{decan-5-one}$ can be prepared by acid-catalyzed reaction is to be stated.

Concept introduction:

An alkyne can be converted into aldehyde and ketone by hydration reaction. In hydration reaction, mercuric ion with a dilute acid is used to carry out the reaction. Mercuric ion is used as a catalyst. After the protonation of the alkynyl carbon, the water attacks as the nucleophile and an enol is formed. Enol is unstable and converts into a stable aldehyde or ketone.