Chapter 22, Problem 22.6P

Interpretation Introduction

(a)

Interpretation:

The hydrogen atoms in the given molecule that could be exchanged by deuterium after base treatment in ${\text{D}}_{\text{2}}\text{O}$ are to be identified.

Concept introduction:

The $\alpha$ hydrogens are the hydrogens which are present on the carbon adjacent to the electronegative atom. The base-catalyzed exchange of hydrogen can takes place in ${\text{D}}_{\text{2}}\text{O}$ only when the $\alpha$ hydrogen is acidic in nature. This process leads to the complete exchange of all $\alpha$ hydrogens present.

Interpretation Introduction

(b)

Interpretation:

The hydrogen atoms in the given molecule that could be exchanged by deuterium after base treatment in ${\text{D}}_{\text{2}}\text{O}$ are to be identified.

Concept introduction:

The $\alpha$ hydrogens are the hydrogens which are present on the carbon adjacent to the electronegative atom. The base-catalyzed exchange of hydrogen can takes place in ${\text{D}}_{\text{2}}\text{O}$ only when the $\alpha$ hydrogen is acidic in nature. This process leads to the complete exchange of all $\alpha$ hydrogens present.

Interpretation Introduction

(b)

Interpretation:

The hydrogen atoms in the given molecule that could be exchanged by deuterium after base treatment in ${\text{D}}_{\text{2}}\text{O}$ are to be identified.

Concept introduction:

The $\alpha$ hydrogens are the hydrogens which are present on the carbon adjacent to the electronegative atom. The base-catalyzed exchange of hydrogen can takes place in ${\text{D}}_{\text{2}}\text{O}$ only when the $\alpha$ hydrogen is acidic in nature. This process leads to the complete exchange of all $\alpha$ hydrogens present.