EBK ORGANIC CHEMISTRY
EBK ORGANIC CHEMISTRY
6th Edition
ISBN: 8220103151757
Author: LOUDON
Publisher: MAC HIGHER
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Chapter 28, Problem 28.18P
Interpretation Introduction

(a)

Interpretation:

An orbital symmetry analysis for showing the suprafacial [1,5] carbon migrations that should occur with retention of configuration in the migrating group is to be stated.

Concept introduction:

The pericyclic reactions in which one sigma bond is converted to another sigma bond within the uncatalyzed intramolecular reaction are known as sigmatropic reactions. In this rearrangement, the shifting of one substituent from one region of a π system to another region takes place simultaneously.

Interpretation Introduction

(b)

Interpretation:

The type of sigmatropic reactions that is involved in the given reactions is to be stated. Whether the stereochemistry of the first step is according to the predictions of orbital symmetry or not is to be stated.

Concept introduction:

The pericyclic reactions in which one sigma bond is converted to another sigma bond within the uncatalyzed intramolecular reaction are known as sigmatropic reactions. In this rearrangement, the shifting of one substituent from one region of a π system to another region takes place simultaneously.

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