The structure for the compound C is to be proposed. Concept introduction: DEPT stands for distortion less enhancement by polarization transfer. DEPT 13 C − NMR is used to indicate the number of hydrogen atoms that are bonded to each carbon while providing the information of chemical shift in a broadband proton-decoupled 13 C − NMR spectrum. The carbon signals in a DEPT spectrum are classified as CH 3 , CH 2 , CH or C accordingly. Presence of the electronegative compounds like halogens or oxygen or sulfur elements will downfield the signal i.e., the chemical shift will occur at higher δ than the unsubstituted carbons. The tollens test is used to distinguish between aldehyde and ketone . Aldehyde gives positive tollens test and ketone gives negative test.

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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 20, Problem 49P

Interpretation Introduction

Interpretation:

The structure for the compound C is to be proposed.

Concept introduction:

DEPT stands for distortion less enhancement by polarization transfer. DEPT 13C−NMR is used to indicate the number of hydrogen atoms that are bonded to each carbon while providing the information of chemical shift in a broadband proton-decoupled 13C−NMR spectrum.

The carbon signals in a DEPT spectrum are classified as CH3,CH2,CH or C accordingly.

Presence of the electronegative compounds like halogens or oxygen or sulfur elements will downfield the signal i.e., the chemical shift will occur at higher δ than the unsubstituted carbons.

The tollens test is used to distinguish between aldehyde and ketone. Aldehyde gives positive tollens test and ketone gives negative test.

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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 20, Problem 49P

Interpretation Introduction

Interpretation:

The structure for the compound C is to be proposed.

Concept introduction:

DEPT stands for distortion less enhancement by polarization transfer. DEPT 13C−NMR is used to indicate the number of hydrogen atoms that are bonded to each carbon while providing the information of chemical shift in a broadband proton-decoupled 13C−NMR spectrum.

The carbon signals in a DEPT spectrum are classified as CH3,CH2,CH or C accordingly.

Presence of the electronegative compounds like halogens or oxygen or sulfur elements will downfield the signal i.e., the chemical shift will occur at higher δ than the unsubstituted carbons.

The tollens test is used to distinguish between aldehyde and ketone. Aldehyde gives positive tollens test and ketone gives negative test.

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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 20, Problem 49P

Interpretation Introduction

Interpretation:

The structure for the compound C is to be proposed.

Concept introduction:

DEPT stands for distortion less enhancement by polarization transfer. DEPT 13C−NMR is used to indicate the number of hydrogen atoms that are bonded to each carbon while providing the information of chemical shift in a broadband proton-decoupled 13C−NMR spectrum.

The carbon signals in a DEPT spectrum are classified as CH3,CH2,CH or C accordingly.

Presence of the electronegative compounds like halogens or oxygen or sulfur elements will downfield the signal i.e., the chemical shift will occur at higher δ than the unsubstituted carbons.

The tollens test is used to distinguish between aldehyde and ketone. Aldehyde gives positive tollens test and ketone gives negative test.

Expert Solution & Answer

Want to see the full answer?

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 20, Problem 49P

Interpretation Introduction