Chapter 21.3, Problem 7P

Interpretation Introduction

a)

Interpretation:

To prepare the esters for the given corresponding acids.

Concept introduction:

We introspect the two parts of the given ester.

Interpretation Introduction

b)

Interpretation:

To prepare the esters for the given corresponding acids.

Concept introduction:

We begin by observing the two parts of the tanget ester given. The acyl part comes from the carboxylic acid while the OR’ part viz –OCH₃ comes from the alcohol. In this example, the tanget ester given is methyl butanoate .so it can be prepared by treating butanoic acid with methanol.

Interpretation Introduction

c)

Interpretation:

To prepare the esters for the given corresponding acids.

Concept introduction:

We observe the two parts of the tanget ester molecule given. Its acyl part comes from the carboxylic acid while the OR’ part viz –O-CH(CH₃)₂ comes from the alcohol.

In this example, the tanget ester given is isopropyl cyclopentane carboxylate. So it can be prepared by treating cyclopentone carboxylic acid with isopropyl alcohol.