The method to synthesized ( E ) - and ( Z ) -hept-3-ene from the acetylene should be determined. Concept introduction: Alkyne can be reduced to cis- alkenes by the use of Lindlar’s catalyst and alkyne can be reduced to trans-alkenes by the use of Na/NH 3 reagent. Lindlar’s catalyst is a common reducing catalyst used to reduce internal carbon-carbon triple bond to give a cis-alkene. The general reduction reaction is as follows: Sodium metal in liquid ammonia reduces internal carbon-carbon triple bond to give trans-alkene. The general reduction reaction of internal alkynes is as follows:

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Answer 1

Question

Chapter 27, Problem 51E

Interpretation Introduction

Interpretation:

The method to synthesized (E)- and (Z)-hept-3-ene from the acetylene should be determined.

Concept introduction:

Alkyne can be reduced to cis-alkenes by the use of Lindlar’s catalyst and alkyne can be reduced to trans-alkenes by the use of Na/NH3 reagent.

Lindlar’s catalyst is a common reducing catalyst used to reduce internal carbon-carbon triple bond to give a cis-alkene. The general reduction reaction is as follows:

Sodium metal in liquid ammonia reduces internal carbon-carbon triple bond to give trans-alkene. The general reduction reaction of internal alkynes is as follows:

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Answer 2

Question

Chapter 27, Problem 51E

Interpretation Introduction

Interpretation:

The method to synthesized (E)- and (Z)-hept-3-ene from the acetylene should be determined.

Concept introduction:

Alkyne can be reduced to cis-alkenes by the use of Lindlar’s catalyst and alkyne can be reduced to trans-alkenes by the use of Na/NH3 reagent.

Lindlar’s catalyst is a common reducing catalyst used to reduce internal carbon-carbon triple bond to give a cis-alkene. The general reduction reaction is as follows:

Sodium metal in liquid ammonia reduces internal carbon-carbon triple bond to give trans-alkene. The general reduction reaction of internal alkynes is as follows:

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Answer 3

Question

Chapter 27, Problem 51E

Interpretation Introduction

Interpretation:

The method to synthesized (E)- and (Z)-hept-3-ene from the acetylene should be determined.

Concept introduction:

Alkyne can be reduced to cis-alkenes by the use of Lindlar’s catalyst and alkyne can be reduced to trans-alkenes by the use of Na/NH3 reagent.

Lindlar’s catalyst is a common reducing catalyst used to reduce internal carbon-carbon triple bond to give a cis-alkene. The general reduction reaction is as follows:

Sodium metal in liquid ammonia reduces internal carbon-carbon triple bond to give trans-alkene. The general reduction reaction of internal alkynes is as follows:

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Answer 4

Question

Chapter 27, Problem 51E

Interpretation Introduction

Interpretation:

The method to synthesized (E)- and (Z)-hept-3-ene from the acetylene should be determined.

Concept introduction:

Alkyne can be reduced to cis-alkenes by the use of Lindlar’s catalyst and alkyne can be reduced to trans-alkenes by the use of Na/NH3 reagent.

Lindlar’s catalyst is a common reducing catalyst used to reduce internal carbon-carbon triple bond to give a cis-alkene. The general reduction reaction is as follows:

Sodium metal in liquid ammonia reduces internal carbon-carbon triple bond to give trans-alkene. The general reduction reaction of internal alkynes is as follows:

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Answer 5

Chapter 27, Problem 51E

Interpretation Introduction

Interpretation:

The method to synthesized (E)- and (Z)-hept-3-ene from the acetylene should be determined.

Concept introduction:

Alkyne can be reduced to cis-alkenes by the use of Lindlar’s catalyst and alkyne can be reduced to trans-alkenes by the use of Na/NH3 reagent.

Lindlar’s catalyst is a common reducing catalyst used to reduce internal carbon-carbon triple bond to give a cis-alkene. The general reduction reaction is as follows:

Sodium metal in liquid ammonia reduces internal carbon-carbon triple bond to give trans-alkene. The general reduction reaction of internal alkynes is as follows:

Answer 6

Chapter 27, Problem 51E

Interpretation Introduction

Interpretation:

The method to synthesized (E)- and (Z)-hept-3-ene from the acetylene should be determined.

Concept introduction:

Alkyne can be reduced to cis-alkenes by the use of Lindlar’s catalyst and alkyne can be reduced to trans-alkenes by the use of Na/NH3 reagent.

Lindlar’s catalyst is a common reducing catalyst used to reduce internal carbon-carbon triple bond to give a cis-alkene. The general reduction reaction is as follows:

Sodium metal in liquid ammonia reduces internal carbon-carbon triple bond to give trans-alkene. The general reduction reaction of internal alkynes is as follows:

Answer 7

Chapter 27, Problem 51E

Interpretation Introduction

Interpretation:

The method to synthesized (E)- and (Z)-hept-3-ene from the acetylene should be determined.

Concept introduction:

Alkyne can be reduced to cis-alkenes by the use of Lindlar’s catalyst and alkyne can be reduced to trans-alkenes by the use of Na/NH3 reagent.

Lindlar’s catalyst is a common reducing catalyst used to reduce internal carbon-carbon triple bond to give a cis-alkene. The general reduction reaction is as follows:

Sodium metal in liquid ammonia reduces internal carbon-carbon triple bond to give trans-alkene. The general reduction reaction of internal alkynes is as follows:

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 27 - Describe what is meant by each of the following...Ch. 27 - Prob. 2E Ch. 27 - Prob. 3E Ch. 27 - Prob. 4E Ch. 27 - Prob. 5E Ch. 27 - Prob. 6E Ch. 27 - Prob. 7E Ch. 27 - Prob. 8E Ch. 27 - Answer the following questions for this SN2...Ch. 27 - Answer the following questions for this SN1...

Solution Summary: The author explains how acetylene can be reduced to cis-alkenes by the use of Lindlar's catalyst.

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