Chapter 20, Problem 20.18P

Interpretation Introduction

(a)

Interpretation:

The product formed by the reaction of chloroacetic acid with ${\text{P}}_{\text{2}}{\text{O}}_{\text{5}}$ is to be stated.

Concept introduction:

Phosphorus pentoxide is an anhydride of phosphoric acid. It reacts with carboxylic acids to form cyclic anhydrides. Phosphorus pentoxide is a strong dehydrating agent.

Interpretation Introduction

(b)

Interpretation:

The product formed by the reaction of $p\text{-chlorobenzoic}\text{acid}$ with ${\text{P}}_{\text{2}}{\text{O}}_{\text{5}}$ is to be stated.

Concept introduction:

Phosphorus pentoxide is an anhydride of phosphoric acid. It reacts with carboxylic acids to form cyclic anhydrides. Phosphorus pentoxide is a strong dehydrating agent.