Organic Chemistry
Organic Chemistry
6th Edition
ISBN: 9781936221349
Author: Marc Loudon, Jim Parise
Publisher: W. H. Freeman
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Chapter 12, Problem 12.35AP
Interpretation Introduction

(a)

Interpretation:

The structure of the fragment in the EI mass spectrum of 3-amino-3-methylhexane at m/z=72 is to be drawn and a mechanism of its formation is to be stated.

Concept introduction:

In mass spectroscopy, compounds are identified on the basis of mass of compound. When the compound breaks into fragments then they can be distinguished from the other compounds. This technique is also used to differentiate the isotopes of compounds. This technique does not involve electromagnetic radiations. Two peaks are used to identify the compound, the molecular ion which is the mass of the compound and base peak is the peak of most abundant element.

Interpretation Introduction

(b)

Interpretation:

The structure of the fragment in the EI mass spectrum of 3-methyl-3-hexanol at m/z=73 is to be drawn and a mechanism of its formation is to be stated.

Concept introduction:

In mass spectroscopy, compounds are identified on the basis of mass of compound. When the compound breaks into fragments then they can be distinguished from the other compounds. This technique is also used to differentiate the isotopes of compounds. This technique does not involve electromagnetic radiations. Two peaks are used to identify the compound, the molecular ion which is the mass of the compound and base peak is the peak of most abundant element.

Interpretation Introduction

(c)

Interpretation:

The structure of the fragment in the EI mass spectrum of pentanol at m/z=70 is to be drawn and a mechanism of its formation is to be stated.

Concept introduction:

In mass spectroscopy, compounds are identified on the basis of mass of compound. When the compound breaks into fragments then they can be distinguished from the other compounds. This technique is also used to differentiate the isotopes of compounds. This technique does not involve electromagnetic radiations. Two peaks are used to identify the compound, the molecular ion which is the mass of the compound and base peak is the peak of most abundant element.

Interpretation Introduction

(d)

Interpretation:

The structure of the fragment in the EI mass spectrum of neopentane at m/z=57 is to be drawn and a mechanism of its formation is to be stated.

Concept introduction:

In mass spectroscopy, compounds are identified on the basis of mass of compound. When the compound breaks into fragments then they can be distinguished from the other compounds. This technique is also used to differentiate the isotopes of compounds. This technique does not involve electromagnetic radiations. Two peaks are used to identify the compound, the molecular ion which is the mass of the compound and base peak is the peak of most abundant element.

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Question 5: Name the following compound in two ways using side chain and using prefix amine (Common name and IUPAC name both) CH3NH2 CH3CH2NHCH3 CH₂CH₂N(CH3)2 Draw the structure of diethyl methyl amine Question 6. Write the balanced combustion reaction for: a. Hexane b. Propyne c. 2-pentene Question 7: Write the following electrophilic substitution reactions of benzene: Hint: Use notes if you get confused a. Halogenation reaction: b. Nitration reaction : c. Sulphonation reaction: d. Alkylation reaction: e. Aceylation reaction:
Question 4. Name the following structures ○ CH3-C-N-H H CH3CH2-C-N-H H CH3CH2-C-N-CH3 H
A. Add Water to below compound which 2-methyl 2-butene (addition Reaction) H₂C CH₂ CH, + H₂O-> ? Major product? Minor product? B. Add Bromine to the compound which 2-methyl 2-butene (addition Reaction) CH₂ CH₂ + Br₂→ ? Major product and Minor product both are same in this? C. Add Hydrogen Bromide to the compound which 2-methyl 2-butene (addition Reaction) H,C CH₂ CH₂ + HBr Major product? Minor product? D. Add Hydrogen to the compound which 2-methyl 2-butene (addition Reaction) CH₂ CH₂ + H₂ Major product and Minor product both are same in this?
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