ORGANIC CHEMISTRY-EBOOK>I<
ORGANIC CHEMISTRY-EBOOK>I<
9th Edition
ISBN: 9781305084414
Author: McMurry
Publisher: INTER CENG
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Chapter 30.SE, Problem 18AP
Interpretation Introduction

a)

ORGANIC CHEMISTRY-EBOOK>I<, Chapter 30.SE, Problem 18AP , additional homework tip  1

Interpretation:

Whether the electrocyclic reaction shown takes place in conrotatory or disrotatory manner is to be stated. The conditions, thermal or photochemical, under which the reaction can be carried out also is to be stated.

Concept introduction:

In elecrocyclic reactions involving even number of electron pairs, a thermal reaction occurs in conrotatory manner and a photochemical reaction occurs in disrotatory manner.

In elecrocyclic reactions involving odd number of electron pairs, a thermal reaction occurs in disrotatory manner and a photochemical reaction occurs in conrotatory manner.

Interpretation Introduction

b)

ORGANIC CHEMISTRY-EBOOK>I<, Chapter 30.SE, Problem 18AP , additional homework tip  2

Interpretation:

Whether the electrocyclic reaction shown takes place in conrotatory or disrotatory manner is to be stated. The conditions, thermal or photochemical, under which the reaction can be carried out also is to be stated.

Concept introduction:

In elecrocyclic reactions involving even number of electron pairs, a thermal reaction occurs in conrotatory manner and a photochemical reaction occurs in disrotatory manner.

In elecrocyclic reactions involving odd number of electron pairs, a thermal reaction occurs in disrotatory manner and a photochemical reaction occurs in conrotatory manner.

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