The amounts of stereoisomeric 1,2-dimethylcyclohexanes formed on catalytic hydrogenation of 2-methyl(methylene)-cyclohexene reflect their relative stabilities or not is to be stated. Concept Introduction: > During catalytic hydrogenation, one hydrogen atom gets attached to each of the double bonded carbon atoms.It is a stereospecific syn addition;both hydrogensadd to the same face of the double bond. > In catalytic hydrogenation, the stereo selectivity depends on the direction from which hydrogen atoms are transferred from the catalyst to the double bond. > In the stereochemical reactions of cycloalkenes, the product of syn addition is formed exclusively even though it is less stable stereoisomer. > The stereoisomer in which the bulky substituents occupy maximum equatorial sites is less stable.

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Answer 1

Question

Chapter 8.2, Problem 2P

Interpretation Introduction

Interpretation:

The amounts of stereoisomeric 1,2-dimethylcyclohexanes formed on catalytic hydrogenation of 2-methyl(methylene)-cyclohexene reflect their relative stabilities or not is to be stated.

Concept Introduction:
>
During catalytic hydrogenation, one hydrogen atom gets attached to each of the double bonded carbon atoms.It is a stereospecific syn addition;both hydrogensadd to the same face of the double bond.
>
In catalytic hydrogenation, the stereo selectivity depends on the direction from which hydrogen atoms are transferred from the catalyst to the double bond.
>
In the stereochemical reactions of cycloalkenes, the product of syn addition is formed exclusively even though it is less stable stereoisomer.
>
The stereoisomer in which the bulky substituents occupy maximum equatorial sites is less stable.

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Answer 2

Question

Chapter 8.2, Problem 2P

Interpretation Introduction

Interpretation:

The amounts of stereoisomeric 1,2-dimethylcyclohexanes formed on catalytic hydrogenation of 2-methyl(methylene)-cyclohexene reflect their relative stabilities or not is to be stated.

Concept Introduction:
>
During catalytic hydrogenation, one hydrogen atom gets attached to each of the double bonded carbon atoms.It is a stereospecific syn addition;both hydrogensadd to the same face of the double bond.
>
In catalytic hydrogenation, the stereo selectivity depends on the direction from which hydrogen atoms are transferred from the catalyst to the double bond.
>
In the stereochemical reactions of cycloalkenes, the product of syn addition is formed exclusively even though it is less stable stereoisomer.
>
The stereoisomer in which the bulky substituents occupy maximum equatorial sites is less stable.

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Check out a sample textbook solution

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Answer 3

Question

Chapter 8.2, Problem 2P

Interpretation Introduction

Interpretation:

The amounts of stereoisomeric 1,2-dimethylcyclohexanes formed on catalytic hydrogenation of 2-methyl(methylene)-cyclohexene reflect their relative stabilities or not is to be stated.

Concept Introduction:
>
During catalytic hydrogenation, one hydrogen atom gets attached to each of the double bonded carbon atoms.It is a stereospecific syn addition;both hydrogensadd to the same face of the double bond.
>
In catalytic hydrogenation, the stereo selectivity depends on the direction from which hydrogen atoms are transferred from the catalyst to the double bond.
>
In the stereochemical reactions of cycloalkenes, the product of syn addition is formed exclusively even though it is less stable stereoisomer.
>
The stereoisomer in which the bulky substituents occupy maximum equatorial sites is less stable.

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Answer 4

Question

Chapter 8.2, Problem 2P

Interpretation Introduction

Interpretation:

The amounts of stereoisomeric 1,2-dimethylcyclohexanes formed on catalytic hydrogenation of 2-methyl(methylene)-cyclohexene reflect their relative stabilities or not is to be stated.

Concept Introduction:
>
During catalytic hydrogenation, one hydrogen atom gets attached to each of the double bonded carbon atoms.It is a stereospecific syn addition;both hydrogensadd to the same face of the double bond.
>
In catalytic hydrogenation, the stereo selectivity depends on the direction from which hydrogen atoms are transferred from the catalyst to the double bond.
>
In the stereochemical reactions of cycloalkenes, the product of syn addition is formed exclusively even though it is less stable stereoisomer.
>
The stereoisomer in which the bulky substituents occupy maximum equatorial sites is less stable.

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Answer 5

Chapter 8.2, Problem 2P

Interpretation Introduction

Interpretation:

The amounts of stereoisomeric 1,2-dimethylcyclohexanes formed on catalytic hydrogenation of 2-methyl(methylene)-cyclohexene reflect their relative stabilities or not is to be stated.

Concept Introduction:
>
During catalytic hydrogenation, one hydrogen atom gets attached to each of the double bonded carbon atoms.It is a stereospecific syn addition;both hydrogensadd to the same face of the double bond.
>
In catalytic hydrogenation, the stereo selectivity depends on the direction from which hydrogen atoms are transferred from the catalyst to the double bond.
>
In the stereochemical reactions of cycloalkenes, the product of syn addition is formed exclusively even though it is less stable stereoisomer.
>
The stereoisomer in which the bulky substituents occupy maximum equatorial sites is less stable.

Answer 6

Chapter 8.2, Problem 2P

Interpretation Introduction

Interpretation:

The amounts of stereoisomeric 1,2-dimethylcyclohexanes formed on catalytic hydrogenation of 2-methyl(methylene)-cyclohexene reflect their relative stabilities or not is to be stated.

Concept Introduction:
>
During catalytic hydrogenation, one hydrogen atom gets attached to each of the double bonded carbon atoms.It is a stereospecific syn addition;both hydrogensadd to the same face of the double bond.
>
In catalytic hydrogenation, the stereo selectivity depends on the direction from which hydrogen atoms are transferred from the catalyst to the double bond.
>
In the stereochemical reactions of cycloalkenes, the product of syn addition is formed exclusively even though it is less stable stereoisomer.
>
The stereoisomer in which the bulky substituents occupy maximum equatorial sites is less stable.

Answer 7

Chapter 8.2, Problem 2P

Interpretation Introduction

Interpretation:

The amounts of stereoisomeric 1,2-dimethylcyclohexanes formed on catalytic hydrogenation of 2-methyl(methylene)-cyclohexene reflect their relative stabilities or not is to be stated.

Concept Introduction:
>
During catalytic hydrogenation, one hydrogen atom gets attached to each of the double bonded carbon atoms.It is a stereospecific syn addition;both hydrogensadd to the same face of the double bond.
>
In catalytic hydrogenation, the stereo selectivity depends on the direction from which hydrogen atoms are transferred from the catalyst to the double bond.
>
In the stereochemical reactions of cycloalkenes, the product of syn addition is formed exclusively even though it is less stable stereoisomer.
>
The stereoisomer in which the bulky substituents occupy maximum equatorial sites is less stable.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 8.1 - What three alkenes yield 2-methylbutane on...Ch. 8.2 - Prob. 2P Ch. 8.2 - Prob. 3P Ch. 8.3 - Prob. 4P Ch. 8.4 - Prob. 5P Ch. 8.4 - Give a structural formula for the carbocation...Ch. 8.5 - Prob. 7P Ch. 8.6 - Instead of the three-step process of Mechanism...Ch. 8.6 - The rates of hydration of the two alkenes shown...Ch. 8.6 - Is the electrophilic addition of hydrogen chloride...

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