Plausible mechanism for the given set of transformation needs to be proposed. Concept introduction: When a diketone is deprotonated to form a doubly stabilized enolate ion (Michael donor) which acts as a nucleophile for 1,4-conjugate addition to α,β -unsaturated compound (Michael acceptor) is known as Michael reaction. Michael reaction is thermodynamically controlled. If the addition reaction takes place within the same molecule means then it is known as intramolecular Michael addition reaction. A general scheme for Michael addition is shown below, To Propose : To propose a plausible mechanism for the given transformation.

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Answer 1

Question

Chapter 21, Problem 100IP

(a)

Interpretation Introduction

Interpretation:

Plausible mechanism for the given set of transformation needs to be proposed.

Concept introduction:

When a diketone is deprotonated to form a doubly stabilized enolate ion (Michael donor) which acts as a nucleophile for 1,4-conjugate addition to α,β -unsaturated compound (Michael acceptor) is known as Michael reaction. Michael reaction is thermodynamically controlled. If the addition reaction takes place within the same molecule means then it is known as intramolecular Michael addition reaction. A general scheme for Michael addition is shown below,

To Propose : To propose a plausible mechanism for the given transformation.

(b)

Interpretation Introduction

Interpretation:

Plausible mechanism for the given set of transformation needs to be proposed.

Concept introduction:

When a diketone is deprotonated to form a doubly stabilized enolate ion (Michael donor) which acts as a nucleophile for 1,4-conjugate addition to α,β -unsaturated compound (Michael acceptor) is known as Michael reaction. Michael reaction is thermodynamically controlled. If the addition reaction takes place within the same molecule means then it is known as intramolecular Michael addition reaction. A general scheme for Michael addition is shown below,

To Propose : To propose a plausible mechanism for the given transformation.

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Name the molecules & Identify any chiral center CH3CH2CH2CHCH₂CH₂CH₂CH₂ OH CH₂CHCH2CH3 Br CH3 CH3CHCH2CHCH2CH3 CH3

Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electrons-pushing arrows for the following reaction or mechanistic step(s).

Answer 2

Question

Chapter 21, Problem 100IP

(a)

Interpretation Introduction

Interpretation:

Plausible mechanism for the given set of transformation needs to be proposed.

Concept introduction:

When a diketone is deprotonated to form a doubly stabilized enolate ion (Michael donor) which acts as a nucleophile for 1,4-conjugate addition to α,β -unsaturated compound (Michael acceptor) is known as Michael reaction. Michael reaction is thermodynamically controlled. If the addition reaction takes place within the same molecule means then it is known as intramolecular Michael addition reaction. A general scheme for Michael addition is shown below,

To Propose : To propose a plausible mechanism for the given transformation.

(b)

Interpretation Introduction

Interpretation:

Plausible mechanism for the given set of transformation needs to be proposed.

Concept introduction:

When a diketone is deprotonated to form a doubly stabilized enolate ion (Michael donor) which acts as a nucleophile for 1,4-conjugate addition to α,β -unsaturated compound (Michael acceptor) is known as Michael reaction. Michael reaction is thermodynamically controlled. If the addition reaction takes place within the same molecule means then it is known as intramolecular Michael addition reaction. A general scheme for Michael addition is shown below,

To Propose : To propose a plausible mechanism for the given transformation.

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Answer 3

Question

Chapter 21, Problem 100IP

(a)

Interpretation Introduction

Interpretation:

Plausible mechanism for the given set of transformation needs to be proposed.

Concept introduction:

When a diketone is deprotonated to form a doubly stabilized enolate ion (Michael donor) which acts as a nucleophile for 1,4-conjugate addition to α,β -unsaturated compound (Michael acceptor) is known as Michael reaction. Michael reaction is thermodynamically controlled. If the addition reaction takes place within the same molecule means then it is known as intramolecular Michael addition reaction. A general scheme for Michael addition is shown below,

To Propose : To propose a plausible mechanism for the given transformation.

(b)

Interpretation Introduction

Interpretation:

Plausible mechanism for the given set of transformation needs to be proposed.

Concept introduction:

When a diketone is deprotonated to form a doubly stabilized enolate ion (Michael donor) which acts as a nucleophile for 1,4-conjugate addition to α,β -unsaturated compound (Michael acceptor) is known as Michael reaction. Michael reaction is thermodynamically controlled. If the addition reaction takes place within the same molecule means then it is known as intramolecular Michael addition reaction. A general scheme for Michael addition is shown below,

To Propose : To propose a plausible mechanism for the given transformation.

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Answer 4

Question

Chapter 21, Problem 100IP

(a)

Interpretation Introduction

Interpretation:

Plausible mechanism for the given set of transformation needs to be proposed.

Concept introduction:

When a diketone is deprotonated to form a doubly stabilized enolate ion (Michael donor) which acts as a nucleophile for 1,4-conjugate addition to α,β -unsaturated compound (Michael acceptor) is known as Michael reaction. Michael reaction is thermodynamically controlled. If the addition reaction takes place within the same molecule means then it is known as intramolecular Michael addition reaction. A general scheme for Michael addition is shown below,

To Propose : To propose a plausible mechanism for the given transformation.

(b)

Interpretation Introduction

Interpretation:

Plausible mechanism for the given set of transformation needs to be proposed.

Concept introduction:

When a diketone is deprotonated to form a doubly stabilized enolate ion (Michael donor) which acts as a nucleophile for 1,4-conjugate addition to α,β -unsaturated compound (Michael acceptor) is known as Michael reaction. Michael reaction is thermodynamically controlled. If the addition reaction takes place within the same molecule means then it is known as intramolecular Michael addition reaction. A general scheme for Michael addition is shown below,

To Propose : To propose a plausible mechanism for the given transformation.

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Answer 5

Chapter 21, Problem 100IP

(a)

Interpretation Introduction

Interpretation:

Plausible mechanism for the given set of transformation needs to be proposed.

Concept introduction:

When a diketone is deprotonated to form a doubly stabilized enolate ion (Michael donor) which acts as a nucleophile for 1,4-conjugate addition to α,β -unsaturated compound (Michael acceptor) is known as Michael reaction. Michael reaction is thermodynamically controlled. If the addition reaction takes place within the same molecule means then it is known as intramolecular Michael addition reaction. A general scheme for Michael addition is shown below,

To Propose : To propose a plausible mechanism for the given transformation.

(b)

Interpretation Introduction

Interpretation:

Plausible mechanism for the given set of transformation needs to be proposed.

Concept introduction:

When a diketone is deprotonated to form a doubly stabilized enolate ion (Michael donor) which acts as a nucleophile for 1,4-conjugate addition to α,β -unsaturated compound (Michael acceptor) is known as Michael reaction. Michael reaction is thermodynamically controlled. If the addition reaction takes place within the same molecule means then it is known as intramolecular Michael addition reaction. A general scheme for Michael addition is shown below,

To Propose : To propose a plausible mechanism for the given transformation.

Answer 6

Chapter 21, Problem 100IP

(a)

Interpretation Introduction

Interpretation:

Plausible mechanism for the given set of transformation needs to be proposed.

Concept introduction:

When a diketone is deprotonated to form a doubly stabilized enolate ion (Michael donor) which acts as a nucleophile for 1,4-conjugate addition to α,β -unsaturated compound (Michael acceptor) is known as Michael reaction. Michael reaction is thermodynamically controlled. If the addition reaction takes place within the same molecule means then it is known as intramolecular Michael addition reaction. A general scheme for Michael addition is shown below,

To Propose : To propose a plausible mechanism for the given transformation.

Answer 7

Chapter 21, Problem 100IP

(a)

Interpretation Introduction

Interpretation:

Plausible mechanism for the given set of transformation needs to be proposed.

Concept introduction:

When a diketone is deprotonated to form a doubly stabilized enolate ion (Michael donor) which acts as a nucleophile for 1,4-conjugate addition to α,β -unsaturated compound (Michael acceptor) is known as Michael reaction. Michael reaction is thermodynamically controlled. If the addition reaction takes place within the same molecule means then it is known as intramolecular Michael addition reaction. A general scheme for Michael addition is shown below,

To Propose : To propose a plausible mechanism for the given transformation.

Answer 8

(b)

Interpretation Introduction

Interpretation:

Plausible mechanism for the given set of transformation needs to be proposed.

Concept introduction:

When a diketone is deprotonated to form a doubly stabilized enolate ion (Michael donor) which acts as a nucleophile for 1,4-conjugate addition to α,β -unsaturated compound (Michael acceptor) is known as Michael reaction. Michael reaction is thermodynamically controlled. If the addition reaction takes place within the same molecule means then it is known as intramolecular Michael addition reaction. A general scheme for Michael addition is shown below,

To Propose : To propose a plausible mechanism for the given transformation.

Answer 9

(b)

Interpretation Introduction

Interpretation:

Plausible mechanism for the given set of transformation needs to be proposed.

Concept introduction:

When a diketone is deprotonated to form a doubly stabilized enolate ion (Michael donor) which acts as a nucleophile for 1,4-conjugate addition to α,β -unsaturated compound (Michael acceptor) is known as Michael reaction. Michael reaction is thermodynamically controlled. If the addition reaction takes place within the same molecule means then it is known as intramolecular Michael addition reaction. A general scheme for Michael addition is shown below,

To Propose : To propose a plausible mechanism for the given transformation.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 21.1 - Prob. 1CC Ch. 21.1 - Prob. 2CC Ch. 21.1 - Prob. 3CC Ch. 21.1 - Prob. 1LTS Ch. 21.1 - Prob. 4PTS Ch. 21.1 - APPLY the skill As with aldehydes and ketones, the...Ch. 21.1 - Draw the enolate ion that is formed when each of...Ch. 21.1 - Prob. 7CC Ch. 21.2 - Prob. 8CC Ch. 21.2 - Prob. 9CC

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Chapter 21 Solutions