In Section 15.5c, we learned that the frequency of the C=O stretch for an amide is lower than it is for a ketone , suggesting that the C=O bond is weaker in an amide. This weakening of the C=O bond can be explained by the significant contribution from one of its resonance structures toward the resonance hybrid. The resonance structure for N, N-dimethylacetamide [CH 3 CON(CH 3 ) 2 ] is to be drawn and how it accounts for the weakening of the C=O bond is to be explained. Concept introduction: The lone pair on nitrogen atom can take part in resonance with C=O bond in amide. The C-O single bond is weaker than C=O bond. The C-O single bond character decreases the stiffness of C=O bond. The stretching frequency of C=O band lowers by the Weakening of C=O bond.

Question

6. Show how you would accomplish the following transformations. (Show the steps and reagents/solvents needed) 2-methylpropene →2,2-dimethyloxiran I

Answer 1

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 15, Problem 15.43P

Interpretation Introduction

Interpretation:

In Section 15.5c, we learned that the frequency of the C=O stretch for an amide is lower than it is for a ketone, suggesting that the C=O bond is weaker in an amide. This weakening of the C=O bond can be explained by the significant contribution from one of its resonance structures toward the resonance hybrid. The resonance structure for N, N-dimethylacetamide [CH3CON(CH3)2] is to be drawn and how it accounts for the weakening of the C=O bond is to be explained.

Concept introduction:

The lone pair on nitrogen atom can take part in resonance with C=O bond in amide. The C-O single bond is weaker than C=O bond. The C-O single bond character decreases the stiffness of C=O bond. The stretching frequency of C=O band lowers by the Weakening of C=O bond.

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6. Show how you would accomplish the following transformations. (Show the steps and reagents/solvents needed) 2-methylpropene →2,2-dimethyloxiran I

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Answer 2

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Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 15, Problem 15.43P

Interpretation Introduction

Interpretation:

In Section 15.5c, we learned that the frequency of the C=O stretch for an amide is lower than it is for a ketone, suggesting that the C=O bond is weaker in an amide. This weakening of the C=O bond can be explained by the significant contribution from one of its resonance structures toward the resonance hybrid. The resonance structure for N, N-dimethylacetamide [CH3CON(CH3)2] is to be drawn and how it accounts for the weakening of the C=O bond is to be explained.

Concept introduction:

The lone pair on nitrogen atom can take part in resonance with C=O bond in amide. The C-O single bond is weaker than C=O bond. The C-O single bond character decreases the stiffness of C=O bond. The stretching frequency of C=O band lowers by the Weakening of C=O bond.

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Answer 3

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Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 15, Problem 15.43P

Interpretation Introduction

Interpretation:

In Section 15.5c, we learned that the frequency of the C=O stretch for an amide is lower than it is for a ketone, suggesting that the C=O bond is weaker in an amide. This weakening of the C=O bond can be explained by the significant contribution from one of its resonance structures toward the resonance hybrid. The resonance structure for N, N-dimethylacetamide [CH3CON(CH3)2] is to be drawn and how it accounts for the weakening of the C=O bond is to be explained.

Concept introduction:

The lone pair on nitrogen atom can take part in resonance with C=O bond in amide. The C-O single bond is weaker than C=O bond. The C-O single bond character decreases the stiffness of C=O bond. The stretching frequency of C=O band lowers by the Weakening of C=O bond.

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 ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 15, Problem 15.43P

Interpretation Introduction