The distinguishing mass spectra for the given molecules have to be interpreted. . Concept Introduction: Mass spectroscopy: It is a form of spectroscopic technique which is used for the elucidation of the molecular formula and molecular weight of the compound, depending upon the mass of the molecule. Molecular formula: It represents the types of atoms with their total number present in a given molecule. Molecular ion peak (M) + · : It is defined as the heaviest peak in the IR spectrum of the molecule which represents the largest molecular ion in the given molecule with greater m/z value. Mc Lafferty Rearrangement: This rearrangement can occur in ketones , aldehydes and esters. In this rearrangement a radical center in molecular ion derived from a lone pair or pi-bond removes hydrogen from the Gamma position ( γ ) a pi bond formed the α a n d β position and the bond between the α a n d β position is broken.

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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 10.6, Problem 13P

Interpretation Introduction

Interpretation:

The distinguishing mass spectra for the given molecules have to be interpreted. .

Concept Introduction:

Mass spectroscopy: It is a form of spectroscopic technique which is used for the elucidation of the molecular formula and molecular weight of the compound, depending upon the mass of the molecule.

Molecular formula: It represents the types of atoms with their total number present in a given molecule.

Molecular ion peak(M)+·: It is defined as the heaviest peak in the IR spectrum of the molecule which represents the largest molecular ion in the given molecule with greater m/z value.

Mc Lafferty Rearrangement: This rearrangement can occur in ketones, aldehydes and esters.

In this rearrangement a radical center in molecular ion derived from a lone pair or pi-bond removes hydrogen from the Gamma position (γ) a pi bond formed the α and β position and the bond between the α and β position is broken.

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Part II. xiao isolated a compound TAD (Ca H 10 N₂) from tobacco and obtained its IR spectrum. Xiao proposed a chemical structure shown below: % Transmittance 4000 3500 3000 2500 2000 Wavenumber (cm-1) 1500 1000 (a) Explain why her proposed structure is inconsistent with the IR spectrum obtained (b) TAD exists as a tautomer of the structure xiao proposed. Draw the structure and explain why it is more compatible with the obtained spectrum. (C) what is the possible source for the fairly intense signal at 1621cm1

AE>AE₁ (Y/N) AE=AE₁ (Y/N) AE

Treatment of 2-phenylpropan-2-amine with methyl 2,4-dibromobutanoate in the presence of a nonnucleophilic base, R3N, involves two successive SN2 reactions and gives compound A. ? NH2 Br Br Propose a structural formula for compound A. You do not have to explicitly draw H atoms. You do not have to consider stereochemistry. In cases where there is more than one answer, just draw one. R3N C14H19NO2 + 2 R3NH*Br A

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 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 10.6, Problem 13P

Interpretation Introduction

Interpretation:

The distinguishing mass spectra for the given molecules have to be interpreted. .

Concept Introduction:

Mass spectroscopy: It is a form of spectroscopic technique which is used for the elucidation of the molecular formula and molecular weight of the compound, depending upon the mass of the molecule.

Molecular formula: It represents the types of atoms with their total number present in a given molecule.

Molecular ion peak(M)+·: It is defined as the heaviest peak in the IR spectrum of the molecule which represents the largest molecular ion in the given molecule with greater m/z value.

Mc Lafferty Rearrangement: This rearrangement can occur in ketones, aldehydes and esters.

In this rearrangement a radical center in molecular ion derived from a lone pair or pi-bond removes hydrogen from the Gamma position (γ) a pi bond formed the α and β position and the bond between the α and β position is broken.

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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 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 10.6, Problem 13P

Interpretation Introduction

Interpretation:

The distinguishing mass spectra for the given molecules have to be interpreted. .

Concept Introduction:

Mass spectroscopy: It is a form of spectroscopic technique which is used for the elucidation of the molecular formula and molecular weight of the compound, depending upon the mass of the molecule.

Molecular formula: It represents the types of atoms with their total number present in a given molecule.

Molecular ion peak(M)+·: It is defined as the heaviest peak in the IR spectrum of the molecule which represents the largest molecular ion in the given molecule with greater m/z value.

Mc Lafferty Rearrangement: This rearrangement can occur in ketones, aldehydes and esters.

In this rearrangement a radical center in molecular ion derived from a lone pair or pi-bond removes hydrogen from the Gamma position (γ) a pi bond formed the α and β position and the bond between the α and β position is broken.

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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 10.6, Problem 13P

Interpretation Introduction