Chapter 9.SE, Problem 57AP

Interpretation Introduction

a)

Interpretation:

The order of increasing stability among the carbocations shown is to be stated.

Concept introduction:

Carbocations are stabilized either by resonance or by hyperconjugation or by the inductive effect of the substituents. Among these resonance plays an important role. The order of stability of carbocations is allylic>tertiary>secondary>primary>methyl>vinylic.

To state:

The order of increasing stability among the carbocations shown.

Interpretation Introduction

b)

Interpretation:

The order of increasing stability among the carbocations shown is to be stated.

Concept introduction:

Carbocations are stabilized either by resonance or by hyperconjugation or by the inductive effect of the substituents. Among these resonance plays an important role. The order of stability of carbocations is allylic>tertiary>secondary>primary>methyl>vinylic.

To state:

The order of increasing stability among the carbocations shown.

Interpretation Introduction

c)

Interpretation:

The order of increasing stability among the carbocations shown is to be stated.

Concept introduction:

The stability of carbocations is in the order tertiary>secondary>primary. The carbocations can be stabilized either by resonance or by hyperconjugation or by the inductive effect of the substituents. Among these resonance plays an important role. The order of stability of carbocations is allylic>tertiary>secondary>primary>methyl>vinylic.

To state:

The order of increasing stability among the carbocations shown.