To draw both resonance structures of enolate ion formed from the given set of compounds. Concept introduction: Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion. Symmetrical ketone =Symmetrical α position =one enolate ion Unsymmetrical Ketone=Unymmetrical α position = two enolate ion To Draw : The resonance structure of enolate ion

Question

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Answer 1

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 21.1, Problem 4PTS

(a)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(b)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(c)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(d)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(e)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

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Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 21.1, Problem 4PTS

(a)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(b)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(c)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(d)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(e)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 21.1, Problem 4PTS

(a)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(b)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(c)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(d)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(e)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 21.1, Problem 4PTS

(a)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(b)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(c)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(d)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(e)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 21.1, Problem 4PTS

(a)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(b)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(c)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(d)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

(e)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

Answer 6

Chapter 21.1, Problem 4PTS

(a)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

Answer 7

Chapter 21.1, Problem 4PTS

(a)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

Answer 8

(b)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

Answer 9

(b)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

Answer 10

(c)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

Answer 11

(c)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

Answer 12

(d)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

Answer 13

(d)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

Answer 14

(e)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

Answer 15

(e)

Interpretation Introduction

Interpretation:

To draw both resonance structures of enolate ion formed from the given set of compounds.

Concept introduction:

Keto-enol isomerization is possible when a keto group present in the compound has a movable hydrogen atom in the next carbon attached to the carbonyl group. This occurs generally in almost all keto compounds where a chemical equilibria is present between the keto and enol form of the compound. Conversion of keto to its enol form is known as keto-enol tautomerisation. This conversion occurs in presence of acid or base. The ion fomed after the deprotonation using base at the α position leads to enolate ion.

Symmetrical ketone=Symmetrical α position =one enolate ion

Unsymmetrical Ketone=Unymmetrical α position = two enolate ion

To Draw : The resonance structure of enolate ion

Answer 16

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Answer 17

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Answer 18

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Answer 19

Ch. 21.1 - Prob. 1CC Ch. 21.1 - Prob. 2CC Ch. 21.1 - Prob. 3CC Ch. 21.1 - Prob. 1LTS Ch. 21.1 - Prob. 4PTS Ch. 21.1 - Prob. 5ATS Ch. 21.1 - Prob. 6CC Ch. 21.1 - Prob. 7CC Ch. 21.2 - Prob. 8CC Ch. 21.2 - Prob. 9CC

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Chapter 21 Solutions