Pushing Electrons
Pushing Electrons
4th Edition
ISBN: 9781133951889
Author: Weeks, Daniel P.
Publisher: Cengage Learning
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Chapter 5, Problem 1EQ
Interpretation Introduction

Interpretation: The supply arrows in the laboratory synthesis of a steroid are to be interpreted.

Concept introduction: The reaction mechanism can be defined as the process of the sequence of the reaction steps that shows the conversion of reactant to intermediate. These intermediates can further convert to the product molecules.

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Answer to Problem 1EQ

  Pushing Electrons, Chapter 5, Problem 1EQ , additional homework tip  1

Explanation of Solution

In the given reactant, there is an enolate ion that must react with the carbonyl oxygen atom to form the given intermediate. The shifting of pi electrons over the oxygen atom gives it three lone pairs and causes a negative charge on it. Hence the arrows must be as given below;

  Pushing Electrons, Chapter 5, Problem 1EQ , additional homework tip  2

Conclusion

The enolate ion can form the cyclic ring in the presence of a carbonyl oxygen atom.

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Pushing Electrons

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