Chapter 21, Problem 42P

Interpretation Introduction

(a)

Interpretation: The alkyl halide which is needed to prepare given carboxylic acid using the malonic ester synthesis is to be predicted.

Concept introduction: The Malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. $\text{NaOEt}$ is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate ion.

Interpretation Introduction

(b)

Interpretation: The alkyl halide which is needed to prepare given carboxylic acid using the malonic ester synthesis is to be predicted.

Concept introduction: The Malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. $\text{NaOEt}$ is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

Interpretation Introduction

(c)

Interpretation: The alkyl halide which is needed to prepare given carboxylic acid using the malonic ester synthesis is to be predicted.

Concept introduction: The Malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. $\text{NaOEt}$ is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.