Organic Chemistry: Structure and Function
Organic Chemistry: Structure and Function
8th Edition
ISBN: 9781319079451
Author: K. Peter C. Vollhardt, Neil E. Schore
Publisher: W. H. Freeman
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Chapter 3.7, Problem 3.9TIY
Interpretation Introduction

Interpretation: The products and ratios obtained after monochlorination of 3-methylpentane at 25 °C should be written.

Concept introduction: The chlorination performed with ultraviolet light proceeds via radical chain mechanism.

Tertiary C – H bonds react in halogenations more readily than secondary those in turn are faster to react than primary. This can be attributed to stability of radical formed upon C – H bond cleavage via hyperconjugation.

The phenomenon of hyperconjugation refers to donation of σ electrons into the partly vacant p orbital lobes of radical carbon. More will be number of σ orbital capable of donation of electrons more is the stabilization.

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Write the structures of all the alkenes that can be formed by dehydrohalogenation of the following alkyl halides using sodium ethoxide. Assuming that Zaitsev's rule applies, predict the alkene formed in greatest amount in each case.
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