Chapter 9.7, Problem 16PTS

(a)

Interpretation Introduction

Interpretation:  For the given set of starting molecules, the keto-enol tautomerism should be drawn and identified, under acidic-catalyzed conditions $\left({\text{H}}_{\text{3}}{\text{O}}^{\text{+}}\right)\text{.}$

Concept introduction:

Tautomerism: This type of isomers in which the isomers change into one another with great ease so that ordinarily together in equilibrium.

Keto-enol tautomerism: This is common process and is acid or base catalyst. Typically the keto from the compound is more stable, but in some instance the enol form can be the more stable.

(b)

Interpretation Introduction

Interpretation:  For the given set of starting molecules, the keto-enol tautomerism should be drawn and identified, under acidic-catalyzed conditions $\left({\text{H}}_{\text{3}}{\text{O}}^{\text{+}}\right)\text{.}$

Concept introduction:

Tautomerism: This type of isomers in which the isomers change into one another with great ease so that ordinarily together in equilibrium.

Keto-enol tautomerism: This is common process and is acid or base catalyst. Typically the keto from the compound is more stable, but in some instance the enol form can be the more stable.

(c)

Interpretation Introduction

Interpretation:  For the given set of starting molecules, the keto-enol tautomerism should be drawn and identified, under acidic-catalyzed conditions $\left({\text{H}}_{\text{3}}{\text{O}}^{\text{+}}\right)\text{.}$

Concept introduction:

Tautomerism: This type of isomers in which the isomers change into one another with great ease so that ordinarily together in equilibrium.

Keto-enol tautomerism: This is common process and is acid or base catalyst. Typically the keto from the compound is more stable, but in some instance the enol form can be the more stable.

(d)

Interpretation Introduction

Interpretation:  For the given set of starting molecules, the keto-enol tautomerism should be drawn and identified, under acidic-catalyzed conditions $\left({\text{H}}_{\text{3}}{\text{O}}^{\text{+}}\right)\text{.}$

Concept introduction:

Tautomerism: This type of isomers in which the isomers change into one another with great ease so that ordinarily together in equilibrium.

Keto-enol tautomerism: This is common process and is acid or base catalyst. Typically the keto from the compound is more stable, but in some instance the enol form can be the more stable.