Custom eBook for Organic Chemistry
Custom eBook for Organic Chemistry
2nd Edition
ISBN: 9798214171104
Author: Straumanis
Publisher: Cengage Custom
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Chapter 7, Problem 12E

(a)

Interpretation Introduction

Interpretation: The molecule with the lowest potential energy needs to be drawn for the following condition:

  Custom eBook for Organic Chemistry, Chapter 7, Problem 12E , additional homework tip  1

Here,

  R1, R2 and R3 all are methyl groups.

Concept Introduction: The molecule with lowest potential energy is most stable. In the chair conformation of the cyclohexane, the stable conformation is when large groups are present in the equatorial positions. The equatorial positions in the chair conformation points away from the ring thus, there is less steric hinderance.

(b)

Interpretation Introduction

Interpretation: The molecule with the lowest potential energy needs to be drawn for the following condition:

  Custom eBook for Organic Chemistry, Chapter 7, Problem 12E , additional homework tip  2

Here, R1, R2 and R3 is methyl, t-butyl and methyl group respectively.

Concept Introduction: The molecule with lowest potential energy is most stable. In the chair conformation of the cyclohexane, the stable conformation is when large groups are present in the equatorial positions. The equatorial positions in the chair conformation points away from the ring thus, there is less steric hinderance.

(c)

Interpretation Introduction

Interpretation: The molecule with the lowest potential energy needs to be drawn for the following condition:

  Custom eBook for Organic Chemistry, Chapter 7, Problem 12E , additional homework tip  3

Here, R1, R2 and R3 is methyl, ethyl and propyl group respectively.

Concept Introduction: The molecule with lowest potential energy is most stable. In the chair conformation of the cyclohexane, the stable conformation is when large groups are present in the equatorial positions. The equatorial positions in the chair conformation points away from the ring thus, there is less steric hinderance.

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