The structures of the two enone products obtained, in the approximate ratio of 9:1, when 2, 5-heptanedione undergoes intramolecular aldol condensation in the presence of aqueous NaOH, are to be given. Concept introduction: Aldehydes and ketones with α-hydrogen undergo a base catalyzed carbonyl condensation reaction in aldol condensation. In this reaction two molecules of the reactant combine by forming a bond between α-carbon of one molecule and the carbonyl carbon within the same molecule or of the second molecule. The aldol formed dehydrates on heating to yield α, β-unsaturated aldehyde or ketone as the product. To give: The structures of the two enone products obtained, in the approximate ratio of 9:1, when 2, 5-heptanedione undergoes intramolecular aldol condensation in the presence of aqueous NaOH.

Question

Firefly luciferin exhibits three rings. Identify which of the rings are aromatic. Identify which lone pairs are involved in establishing aromaticity. The lone pairs are labeled A-D below.

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 23.SE, Problem 51AP

Interpretation Introduction

Interpretation:

The structures of the two enone products obtained, in the approximate ratio of 9:1, when 2, 5-heptanedione undergoes intramolecular aldol condensation in the presence of aqueous NaOH, are to be given.

Concept introduction:

Aldehydes and ketones with α-hydrogen undergo a base catalyzed carbonyl condensation reaction in aldol condensation. In this reaction two molecules of the reactant combine by forming a bond between α-carbon of one molecule and the carbonyl carbon within the same molecule or of the second molecule. The aldol formed dehydrates on heating to yield α, β-unsaturated aldehyde or ketone as the product.

To give:

The structures of the two enone products obtained, in the approximate ratio of 9:1, when 2, 5-heptanedione undergoes intramolecular aldol condensation in the presence of aqueous NaOH.

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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 23.SE, Problem 51AP

Interpretation Introduction

Interpretation:

The structures of the two enone products obtained, in the approximate ratio of 9:1, when 2, 5-heptanedione undergoes intramolecular aldol condensation in the presence of aqueous NaOH, are to be given.

Concept introduction:

Aldehydes and ketones with α-hydrogen undergo a base catalyzed carbonyl condensation reaction in aldol condensation. In this reaction two molecules of the reactant combine by forming a bond between α-carbon of one molecule and the carbonyl carbon within the same molecule or of the second molecule. The aldol formed dehydrates on heating to yield α, β-unsaturated aldehyde or ketone as the product.

To give:

The structures of the two enone products obtained, in the approximate ratio of 9:1, when 2, 5-heptanedione undergoes intramolecular aldol condensation in the presence of aqueous NaOH.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

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 23.SE, Problem 51AP

Interpretation Introduction

Interpretation:

The structures of the two enone products obtained, in the approximate ratio of 9:1, when 2, 5-heptanedione undergoes intramolecular aldol condensation in the presence of aqueous NaOH, are to be given.

Concept introduction:

Aldehydes and ketones with α-hydrogen undergo a base catalyzed carbonyl condensation reaction in aldol condensation. In this reaction two molecules of the reactant combine by forming a bond between α-carbon of one molecule and the carbonyl carbon within the same molecule or of the second molecule. The aldol formed dehydrates on heating to yield α, β-unsaturated aldehyde or ketone as the product.

To give:

The structures of the two enone products obtained, in the approximate ratio of 9:1, when 2, 5-heptanedione undergoes intramolecular aldol condensation in the presence of aqueous NaOH.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook 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 23.SE, Problem 51AP

Interpretation Introduction