The observation that the bicyclic ketone shown does not undergo aldol self condensation even though it has two α-hydrogen atoms is to be explained. 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 obtained can be dehydrated to yield α, β-unsaturated aldehyde or ketone. To explain: The observation that the bicyclic ketone shown does not undergo aldol self condensation even though it has two α-hydrogen atoms.

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Answer 1

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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 57AP

Interpretation Introduction

Interpretation:

The observation that the bicyclic ketone shown does not undergo aldol self condensation even though it has two α-hydrogen atoms is to be explained.

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 obtained can be dehydrated to yield α, β-unsaturated aldehyde or ketone.

To explain:

The observation that the bicyclic ketone shown does not undergo aldol self condensation even though it has two α-hydrogen atoms.

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1. Problem Set 3b Chem 141 For each of the following compounds draw the BEST Lewis Structure then sketch the molecule (showing bond angles). Identify (i) electron group geometry (ii) shape around EACH central atom (iii) whether the molecule is polar or non-polar (iv) (a) SeF4 Best Lewis Structure e group arrangement:_ shape/molecular geometry: polarity: (b) AsOBr3 Best Lewis Structure e group arrangement:_ shape/molecular geometry: polarity: Sketch (with angles): Sketch (with angles):

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 57AP

Interpretation Introduction

Interpretation:

The observation that the bicyclic ketone shown does not undergo aldol self condensation even though it has two α-hydrogen atoms is to be explained.

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 obtained can be dehydrated to yield α, β-unsaturated aldehyde or ketone.

To explain:

The observation that the bicyclic ketone shown does not undergo aldol self condensation even though it has two α-hydrogen atoms.

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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 23.SE, Problem 57AP

Interpretation Introduction

Interpretation:

The observation that the bicyclic ketone shown does not undergo aldol self condensation even though it has two α-hydrogen atoms is to be explained.

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 obtained can be dehydrated to yield α, β-unsaturated aldehyde or ketone.

To explain:

The observation that the bicyclic ketone shown does not undergo aldol self condensation even though it has two α-hydrogen atoms.

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 23.SE, Problem 57AP

Interpretation Introduction