Organic Chemistry
Organic Chemistry
2nd Edition
ISBN: 9781118452288
Author: David R. Klein
Publisher: WILEY
Question
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Chapter 4, Problem 67IP

(a)

Interpretation Introduction

Interpretation:

The more stable compound from given compounds cis-1,2-dimethylcyclopropane, trans-1,2-dimethylcyclopropane has to be identified.

Concept introduction:

  • Cyclopropane compounds are the smallest cyclic compounds.
  • The atoms are very closely located in cyclopropane compounds.
  • Every atoms/groups attached to the carbon atoms of cyclopropane are eclipsing in below the plane and above the plane.
  • The increasing cost energy order of eclipsed atoms/groups is,

H/H (4 kJ/mol) < H/CH3(6 kJ/mol) < CH3/CH3(11 kJ/mol)

(b)

Interpretation Introduction

Interpretation:

The energy difference between the two compounds has to be predicted.

Concept introduction:

  • Cyclopropane compounds are the smallest cyclic compounds.
  • The atoms are very closely located in cyclopropane compounds.
  • Every atoms/groups attached to the carbon atoms of cyclopropane are eclipsing in below the plane and above the plane.
  • The increasing cost energy order of eclipsed atoms/groups is,

H/H (4 kJ/mol) < H/CH3(6 kJ/mol) < CH3/CH3(11 kJ/mol)

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Chapter 4 Solutions

Organic Chemistry

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