The complete, detailed mechanism for the reaction of but-1-ene-3-yne with HBr, producing 4-bromobuta-1, 2-diene is to be drawn. Concept introduction: The pi bond of an alkene or an alkyne is an electron-rich region. It undergoes electrophilic addition reaction when treated with a Bronsted acid. The addition of proton in the first step leads to the formation of a carbocation intermediate. The carbocation may undergo a rearrangement if it leads to a more stable carbocation. In the second step, the conjugate base of the acid adds to the carbocation.

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Answer 1

Question

Chapter 11, Problem 11.56P

Interpretation Introduction

Interpretation:

The complete, detailed mechanism for the reaction of but-1-ene-3-yne with HBr, producing 4-bromobuta-1, 2-diene is to be drawn.

Concept introduction:

The pi bond of an alkene or an alkyne is an electron-rich region. It undergoes electrophilic addition reaction when treated with a Bronsted acid. The addition of proton in the first step leads to the formation of a carbocation intermediate. The carbocation may undergo a rearrangement if it leads to a more stable carbocation. In the second step, the conjugate base of the acid adds to the carbocation.

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Answer 2

Question

Chapter 11, Problem 11.56P

Interpretation Introduction

Interpretation:

The complete, detailed mechanism for the reaction of but-1-ene-3-yne with HBr, producing 4-bromobuta-1, 2-diene is to be drawn.

Concept introduction:

The pi bond of an alkene or an alkyne is an electron-rich region. It undergoes electrophilic addition reaction when treated with a Bronsted acid. The addition of proton in the first step leads to the formation of a carbocation intermediate. The carbocation may undergo a rearrangement if it leads to a more stable carbocation. In the second step, the conjugate base of the acid adds to the carbocation.

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Answer 3

Question

Chapter 11, Problem 11.56P

Interpretation Introduction

Interpretation:

The complete, detailed mechanism for the reaction of but-1-ene-3-yne with HBr, producing 4-bromobuta-1, 2-diene is to be drawn.

Concept introduction:

The pi bond of an alkene or an alkyne is an electron-rich region. It undergoes electrophilic addition reaction when treated with a Bronsted acid. The addition of proton in the first step leads to the formation of a carbocation intermediate. The carbocation may undergo a rearrangement if it leads to a more stable carbocation. In the second step, the conjugate base of the acid adds to the carbocation.

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Answer 4

Question

Chapter 11, Problem 11.56P

Interpretation Introduction

Interpretation:

The complete, detailed mechanism for the reaction of but-1-ene-3-yne with HBr, producing 4-bromobuta-1, 2-diene is to be drawn.

Concept introduction:

The pi bond of an alkene or an alkyne is an electron-rich region. It undergoes electrophilic addition reaction when treated with a Bronsted acid. The addition of proton in the first step leads to the formation of a carbocation intermediate. The carbocation may undergo a rearrangement if it leads to a more stable carbocation. In the second step, the conjugate base of the acid adds to the carbocation.

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Answer 5

Chapter 11, Problem 11.56P

Interpretation Introduction

Interpretation:

The complete, detailed mechanism for the reaction of but-1-ene-3-yne with HBr, producing 4-bromobuta-1, 2-diene is to be drawn.

Concept introduction:

The pi bond of an alkene or an alkyne is an electron-rich region. It undergoes electrophilic addition reaction when treated with a Bronsted acid. The addition of proton in the first step leads to the formation of a carbocation intermediate. The carbocation may undergo a rearrangement if it leads to a more stable carbocation. In the second step, the conjugate base of the acid adds to the carbocation.

Answer 6

Chapter 11, Problem 11.56P

Interpretation Introduction

Interpretation:

The complete, detailed mechanism for the reaction of but-1-ene-3-yne with HBr, producing 4-bromobuta-1, 2-diene is to be drawn.

Concept introduction:

The pi bond of an alkene or an alkyne is an electron-rich region. It undergoes electrophilic addition reaction when treated with a Bronsted acid. The addition of proton in the first step leads to the formation of a carbocation intermediate. The carbocation may undergo a rearrangement if it leads to a more stable carbocation. In the second step, the conjugate base of the acid adds to the carbocation.

Answer 7

Chapter 11, Problem 11.56P

Interpretation Introduction

Interpretation:

The complete, detailed mechanism for the reaction of but-1-ene-3-yne with HBr, producing 4-bromobuta-1, 2-diene is to be drawn.

Concept introduction:

The pi bond of an alkene or an alkyne is an electron-rich region. It undergoes electrophilic addition reaction when treated with a Bronsted acid. The addition of proton in the first step leads to the formation of a carbocation intermediate. The carbocation may undergo a rearrangement if it leads to a more stable carbocation. In the second step, the conjugate base of the acid adds to the carbocation.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 11 - Prob. 11.1P Ch. 11 - Prob. 11.2P Ch. 11 - Prob. 11.3P Ch. 11 - Prob. 11.4P Ch. 11 - Prob. 11.5P Ch. 11 - Prob. 11.6P Ch. 11 - Prob. 11.7P Ch. 11 - Prob. 11.8P Ch. 11 - Prob. 11.9P Ch. 11 - Prob. 11.10P

Solution Summary: The author explains the complete, detailed mechanism for the reaction of but-1-ene-3-yne with HBr.

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