a) Interpretation: The product expected when 5-methylcycloheptene reacts with NBS is to be shown. If more than one product is possible the structures of all of them are to be shown. Concept introduction: NBS is used mainly for allylic bromination. An unsymmetrical alkene will lead to a mixture of products as two different allyl radicals will be produced as a result of delocalization. The two products are not formed in equal amounts because the intermediate allylic radical is not symmetrical and the reaction at two ends will not take place to the same extent. Reaction at less hindered primary side is more favored. To show: The structures of all the products expected when 5-methylcycloheptene reacts with NBS.

Question

Identifying electron-donating and For each of the substituted benzene molecules below, determine the inductive and resonance effects the substituent will have on the benzene ring, as well as the overall electron-density of the ring compared to unsubstituted benzene. Molecule Inductive Effects NH2 ○ donating NO2 Explanation Check withdrawing no inductive effects Resonance Effects Overall Electron-Density ○ donating O withdrawing O no resonance effects O donating O withdrawing O donating withdrawing O no inductive effects Ono resonance effects O electron-rich electron-deficient O similar to benzene O electron-rich O electron-deficient O similar to benzene olo 18 Ar 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility

Answer 1

Question

Chapter 10.4, Problem 7P

Interpretation Introduction

a)

Interpretation:

The product expected when 5-methylcycloheptene reacts with NBS is to be shown. If more than one product is possible the structures of all of them are to be shown.

Concept introduction:

NBS is used mainly for allylic bromination. An unsymmetrical alkene will lead to a mixture of products as two different allyl radicals will be produced as a result of delocalization. The two products are not formed in equal amounts because the intermediate allylic radical is not symmetrical and the reaction at two ends will not take place to the same extent. Reaction at less hindered primary side is more favored.

To show:

The structures of all the products expected when 5-methylcycloheptene reacts with NBS.

Interpretation Introduction

b)

Interpretation:

The product expected when 2-methyl-3-hexene reacts with NBS is to be shown. If more than one product is possible the structures of all of them are to be shown.

Concept introduction:

NBS is used mainly for allylic bromination. An unsymmetrical alkene will lead to a mixture of products as two different allyl radicals will be produced as a result of delocalization. The two products are not formed in equal amounts because the intermediate allylic radical is not symmetrical and the reaction at two ends will not take place to the same extent. Reaction at less hindered primary side is more favored.

To show:

The structures of all the products expected when 2-methyl-3-hexene reacts with NBS.

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