a) Interpretation: A structure for ketone or aldehyde with the following descriptions is to be proposed. C 10 H 12 O, IR: 1710 cm -1 ; 1 HNMR: 1.01 δ (Rel.area=1.50), 2.47 δ (Rel.area=1.00), 3.66 δ (Rel.area=1.00), 7.28 δ (Rel.area=2.50). Concept introduction: Aldehydes and ketones show a strong absorption band in IR from 1660-1770 cm -1 . Aldehydes show two characteristic C-H absorptions between 2700-2760 cm -1 and 2800-2860 cm -1 . Saturated aldehydes absorb near 1730 cm -1 while aromatic aldehydes and α, β-unsaturated aldehydes absorb near 1705 cm -1 . Saturated ketones and cyclohexanones absorb near 1715 cm -1 while aromatic ketones and α, β-unsaturated ketones absorb near 1685-1690 cm -1 . Cyclopentanones absorb around 1750 cm -1 . In 1 HNMR the aldehyde protons absorb near 10 δ with a coupling constant, J=3Hz. Hydrogens on the carbon next to aldehyde group absorb near 2.0-2.3 δ. Methyl ketones show a sharp three proton singlet near 2.1 δ. To propose: A structure for ketone or aldehyde with the following descriptions. C 10 H 12 O, IR: 1710 cm -1 ; 1 HNMR: 1.01 δ (Rel.area=1.50), 2.47 δ (Rel.area=1.00), 3.66 δ (Rel.area=1.00), 7.28 δ (Rel.area=2.50).

Question

Rank the labeled protons (Ha-Hd) in order of increasing acidity, starting with the least acidic. НОН НЬ OHd Онс

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 19.SE, Problem 84AP

Interpretation Introduction

a)

Interpretation:

A structure for ketone or aldehyde with the following descriptions is to be proposed.

C₁₀H₁₂O, IR: 1710 cm^-1; ¹HNMR: 1.01 δ (Rel.area=1.50), 2.47 δ (Rel.area=1.00), 3.66 δ (Rel.area=1.00), 7.28 δ (Rel.area=2.50).

Concept introduction:

Aldehydes and ketones show a strong absorption band in IR from 1660-1770 cm^-1. Aldehydes show two characteristic C-H absorptions between 2700-2760 cm^-1 and 2800-2860 cm^-1. Saturated aldehydes absorb near 1730 cm^-1 while aromatic aldehydes and α, β-unsaturated aldehydes absorb near 1705 cm^-1. Saturated ketones and cyclohexanones absorb near 1715 cm^-1 while aromatic ketones and α, β-unsaturated ketones absorb near 1685-1690 cm^-1. Cyclopentanones absorb around 1750 cm^-1.

In ¹HNMR the aldehyde protons absorb near 10 δ with a coupling constant, J=3Hz. Hydrogens on the carbon next to aldehyde group absorb near 2.0-2.3 δ. Methyl ketones show a sharp three proton singlet near 2.1 δ.

To propose:

A structure for ketone or aldehyde with the following descriptions.

C₁₀H₁₂O, IR: 1710 cm^-1; ¹HNMR: 1.01 δ (Rel.area=1.50), 2.47 δ (Rel.area=1.00), 3.66 δ (Rel.area=1.00), 7.28 δ (Rel.area=2.50).

Interpretation Introduction

b)

Interpretation:

A structure for ketone or aldehyde with the following descriptions is to be proposed.

C₆H₁₂O₃, IR: 1715 cm^-1; ¹HNMR: 2.18 δ (Rel.area=3.00), 2.74 δ (Rel.area=2.00), 3.37 δ (Rel.area=6.00), 4.79 δ (Rel.area=1.00).

Concept introduction:

Aldehydes and ketones show a strong absorption band in IR from 1660-1770 cm^-1. Aldehydes show two characteristic C-H absorptions between 2700-2760 cm^-1 and 2800-2860 cm^-1. Saturated aldehydes absorb near 1730 cm^-1 while aromatic aldehydes and α, β-unsaturated aldehydes absorb near 1705 cm^-1. Saturated ketones and cyclohexanones absorb near 1715 cm^-1 while aromatic ketones and α, β-unsaturated ketones absorb near 1685-1690 cm^-1. Cyclopentanones absorb around 1750 cm^-1.

In ¹HNMR the aldehyde protons absorb near 10 δ with a coupling constant, J=3Hz. Hydrogens on the carbon next to aldehyde group absorb near 2.0-2.3 δ. Methyl ketones show a sharp three proton singlet near 2.1 δ.

To propose:

A structure for ketone or aldehyde with the following descriptions.

C₆H₁₂O₃, IR: 1715 cm^-1; ¹HNMR: 2.18 δ (Rel.area=3.00), 2.74 δ (Rel.area=2.00), 3.37 δ (Rel.area=6.00), 4.79 δ (Rel.area=1.00).

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Rank the labeled protons (Ha-Hd) in order of increasing acidity, starting with the least acidic. НОН НЬ OHd Онс

Can the target compound at right be efficiently synthesized in good yield from the unsubstituted benzene at left? ? starting material target If so, draw a synthesis below. If no synthesis using reagents ALEKS recognizes is possible, check the box under the drawing area. Be sure you follow the standard ALEKS rules for submitting syntheses. + More... Note for advanced students: you may assume that you are using a large excess of benzene as your starting material. C :0 T Add/Remove step G

The following equations represent the formation of compound MX. What is the AH for the electron affinity of X (g)? X₂ (g) → 2X (g) M (s) → M (g) M (g) M (g) + e- AH = 60 kJ/mol AH = 22 kJ/mol X (g) + e-X (g) M* (g) +X (g) → MX (s) AH = 118 kJ/mol AH = ? AH = -190 kJ/mol AH = -100 kJ/mol a) -80 kJ b) -30 kJ c) -20 kJ d) 20 kJ e) 156 kJ

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 19.SE, Problem 84AP

Interpretation Introduction

a)

Interpretation:

A structure for ketone or aldehyde with the following descriptions is to be proposed.

C₁₀H₁₂O, IR: 1710 cm^-1; ¹HNMR: 1.01 δ (Rel.area=1.50), 2.47 δ (Rel.area=1.00), 3.66 δ (Rel.area=1.00), 7.28 δ (Rel.area=2.50).

Concept introduction:

Aldehydes and ketones show a strong absorption band in IR from 1660-1770 cm^-1. Aldehydes show two characteristic C-H absorptions between 2700-2760 cm^-1 and 2800-2860 cm^-1. Saturated aldehydes absorb near 1730 cm^-1 while aromatic aldehydes and α, β-unsaturated aldehydes absorb near 1705 cm^-1. Saturated ketones and cyclohexanones absorb near 1715 cm^-1 while aromatic ketones and α, β-unsaturated ketones absorb near 1685-1690 cm^-1. Cyclopentanones absorb around 1750 cm^-1.

In ¹HNMR the aldehyde protons absorb near 10 δ with a coupling constant, J=3Hz. Hydrogens on the carbon next to aldehyde group absorb near 2.0-2.3 δ. Methyl ketones show a sharp three proton singlet near 2.1 δ.

To propose:

A structure for ketone or aldehyde with the following descriptions.

C₁₀H₁₂O, IR: 1710 cm^-1; ¹HNMR: 1.01 δ (Rel.area=1.50), 2.47 δ (Rel.area=1.00), 3.66 δ (Rel.area=1.00), 7.28 δ (Rel.area=2.50).

Interpretation Introduction

b)

Interpretation:

A structure for ketone or aldehyde with the following descriptions is to be proposed.

C₆H₁₂O₃, IR: 1715 cm^-1; ¹HNMR: 2.18 δ (Rel.area=3.00), 2.74 δ (Rel.area=2.00), 3.37 δ (Rel.area=6.00), 4.79 δ (Rel.area=1.00).

Concept introduction:

Aldehydes and ketones show a strong absorption band in IR from 1660-1770 cm^-1. Aldehydes show two characteristic C-H absorptions between 2700-2760 cm^-1 and 2800-2860 cm^-1. Saturated aldehydes absorb near 1730 cm^-1 while aromatic aldehydes and α, β-unsaturated aldehydes absorb near 1705 cm^-1. Saturated ketones and cyclohexanones absorb near 1715 cm^-1 while aromatic ketones and α, β-unsaturated ketones absorb near 1685-1690 cm^-1. Cyclopentanones absorb around 1750 cm^-1.

In ¹HNMR the aldehyde protons absorb near 10 δ with a coupling constant, J=3Hz. Hydrogens on the carbon next to aldehyde group absorb near 2.0-2.3 δ. Methyl ketones show a sharp three proton singlet near 2.1 δ.

To propose:

A structure for ketone or aldehyde with the following descriptions.

C₆H₁₂O₃, IR: 1715 cm^-1; ¹HNMR: 2.18 δ (Rel.area=3.00), 2.74 δ (Rel.area=2.00), 3.37 δ (Rel.area=6.00), 4.79 δ (Rel.area=1.00).

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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 19.SE, Problem 84AP

Interpretation Introduction

a)

Interpretation:

A structure for ketone or aldehyde with the following descriptions is to be proposed.

C₁₀H₁₂O, IR: 1710 cm^-1; ¹HNMR: 1.01 δ (Rel.area=1.50), 2.47 δ (Rel.area=1.00), 3.66 δ (Rel.area=1.00), 7.28 δ (Rel.area=2.50).

Concept introduction:

Aldehydes and ketones show a strong absorption band in IR from 1660-1770 cm^-1. Aldehydes show two characteristic C-H absorptions between 2700-2760 cm^-1 and 2800-2860 cm^-1. Saturated aldehydes absorb near 1730 cm^-1 while aromatic aldehydes and α, β-unsaturated aldehydes absorb near 1705 cm^-1. Saturated ketones and cyclohexanones absorb near 1715 cm^-1 while aromatic ketones and α, β-unsaturated ketones absorb near 1685-1690 cm^-1. Cyclopentanones absorb around 1750 cm^-1.

In ¹HNMR the aldehyde protons absorb near 10 δ with a coupling constant, J=3Hz. Hydrogens on the carbon next to aldehyde group absorb near 2.0-2.3 δ. Methyl ketones show a sharp three proton singlet near 2.1 δ.

To propose:

A structure for ketone or aldehyde with the following descriptions.

C₁₀H₁₂O, IR: 1710 cm^-1; ¹HNMR: 1.01 δ (Rel.area=1.50), 2.47 δ (Rel.area=1.00), 3.66 δ (Rel.area=1.00), 7.28 δ (Rel.area=2.50).

Interpretation Introduction

b)

Interpretation:

A structure for ketone or aldehyde with the following descriptions is to be proposed.

C₆H₁₂O₃, IR: 1715 cm^-1; ¹HNMR: 2.18 δ (Rel.area=3.00), 2.74 δ (Rel.area=2.00), 3.37 δ (Rel.area=6.00), 4.79 δ (Rel.area=1.00).

Concept introduction:

Aldehydes and ketones show a strong absorption band in IR from 1660-1770 cm^-1. Aldehydes show two characteristic C-H absorptions between 2700-2760 cm^-1 and 2800-2860 cm^-1. Saturated aldehydes absorb near 1730 cm^-1 while aromatic aldehydes and α, β-unsaturated aldehydes absorb near 1705 cm^-1. Saturated ketones and cyclohexanones absorb near 1715 cm^-1 while aromatic ketones and α, β-unsaturated ketones absorb near 1685-1690 cm^-1. Cyclopentanones absorb around 1750 cm^-1.

In ¹HNMR the aldehyde protons absorb near 10 δ with a coupling constant, J=3Hz. Hydrogens on the carbon next to aldehyde group absorb near 2.0-2.3 δ. Methyl ketones show a sharp three proton singlet near 2.1 δ.

To propose:

A structure for ketone or aldehyde with the following descriptions.

C₆H₁₂O₃, IR: 1715 cm^-1; ¹HNMR: 2.18 δ (Rel.area=3.00), 2.74 δ (Rel.area=2.00), 3.37 δ (Rel.area=6.00), 4.79 δ (Rel.area=1.00).

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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 19.SE, Problem 84AP

Interpretation Introduction