The synthetic route for the preparation of given transformation (mechanism) should be determined. Concept Introduction : Birch Reduction: The conjugated alkynes and benzenes in the presence of sodium metal in liquid ammonia and alkyne produced a non-conjugated diene system. The alkyne involves sodium (Na)/NH 3 . This end up reducing to alkyne to give the trans (E) alkene . Tautomerism: The two isomer of compound which differ only in the position of the protons and electrons. In the carbon skeleton of the compound is unchanged, a reaction which involves simple proton transfer in an intramolecular fashion it is called a tautomerism.

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Answer 1

Question

Chapter 10, Problem 49PP

(a)

Interpretation Introduction

Interpretation:

The synthetic route for the preparation of given transformation (mechanism) should be determined.

Concept Introduction:

Birch Reduction: The conjugated alkynes and benzenes in the presence of sodium metal in liquid ammonia and alkyne produced a non-conjugated diene system.

The alkyne involves sodium (Na)/NH₃. This end up reducing to alkyne to give the trans (E) alkene.

Tautomerism: The two isomer of compound which differ only in the position of the protons and electrons. In the carbon skeleton of the compound is unchanged, a reaction which involves simple proton transfer in an intramolecular fashion it is called a tautomerism.

(b)

Interpretation Introduction

Interpretation:

The synthetic route for the preparation of given transformation (mechanism) should be determined.

Concept Introduction:

Birch Reduction: The conjugated alkynes and benzenes in the presence of sodium metal in liquid ammonia and alkyne produced a non-conjugated diene system.

The alkyne involves sodium (Na)/NH₃. This end up reducing to alkyne to give the trans (E) alkene.

Tautomerism: The two isomer of compound which differ only in the position of the protons and electrons. In the carbon skeleton of the compound is unchanged, a reaction which involves simple proton transfer in an intramolecular fashion it is called a tautomerism.

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Answer 2

Question

Chapter 10, Problem 49PP

(a)

Interpretation Introduction

Interpretation:

The synthetic route for the preparation of given transformation (mechanism) should be determined.

Concept Introduction:

Birch Reduction: The conjugated alkynes and benzenes in the presence of sodium metal in liquid ammonia and alkyne produced a non-conjugated diene system.

The alkyne involves sodium (Na)/NH₃. This end up reducing to alkyne to give the trans (E) alkene.

Tautomerism: The two isomer of compound which differ only in the position of the protons and electrons. In the carbon skeleton of the compound is unchanged, a reaction which involves simple proton transfer in an intramolecular fashion it is called a tautomerism.

(b)

Interpretation Introduction

Interpretation:

The synthetic route for the preparation of given transformation (mechanism) should be determined.

Concept Introduction:

Birch Reduction: The conjugated alkynes and benzenes in the presence of sodium metal in liquid ammonia and alkyne produced a non-conjugated diene system.

The alkyne involves sodium (Na)/NH₃. This end up reducing to alkyne to give the trans (E) alkene.

Tautomerism: The two isomer of compound which differ only in the position of the protons and electrons. In the carbon skeleton of the compound is unchanged, a reaction which involves simple proton transfer in an intramolecular fashion it is called a tautomerism.

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Answer 3

Question

Chapter 10, Problem 49PP

(a)

Interpretation Introduction

Interpretation:

The synthetic route for the preparation of given transformation (mechanism) should be determined.

Concept Introduction:

Birch Reduction: The conjugated alkynes and benzenes in the presence of sodium metal in liquid ammonia and alkyne produced a non-conjugated diene system.

The alkyne involves sodium (Na)/NH₃. This end up reducing to alkyne to give the trans (E) alkene.

Tautomerism: The two isomer of compound which differ only in the position of the protons and electrons. In the carbon skeleton of the compound is unchanged, a reaction which involves simple proton transfer in an intramolecular fashion it is called a tautomerism.

(b)

Interpretation Introduction

Interpretation:

The synthetic route for the preparation of given transformation (mechanism) should be determined.

Concept Introduction:

Birch Reduction: The conjugated alkynes and benzenes in the presence of sodium metal in liquid ammonia and alkyne produced a non-conjugated diene system.

The alkyne involves sodium (Na)/NH₃. This end up reducing to alkyne to give the trans (E) alkene.

Tautomerism: The two isomer of compound which differ only in the position of the protons and electrons. In the carbon skeleton of the compound is unchanged, a reaction which involves simple proton transfer in an intramolecular fashion it is called a tautomerism.

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Answer 4

Question

Chapter 10, Problem 49PP

(a)

Interpretation Introduction

Interpretation:

The synthetic route for the preparation of given transformation (mechanism) should be determined.

Concept Introduction:

Birch Reduction: The conjugated alkynes and benzenes in the presence of sodium metal in liquid ammonia and alkyne produced a non-conjugated diene system.

The alkyne involves sodium (Na)/NH₃. This end up reducing to alkyne to give the trans (E) alkene.

Tautomerism: The two isomer of compound which differ only in the position of the protons and electrons. In the carbon skeleton of the compound is unchanged, a reaction which involves simple proton transfer in an intramolecular fashion it is called a tautomerism.

(b)

Interpretation Introduction

Interpretation:

The synthetic route for the preparation of given transformation (mechanism) should be determined.

Concept Introduction:

Birch Reduction: The conjugated alkynes and benzenes in the presence of sodium metal in liquid ammonia and alkyne produced a non-conjugated diene system.

The alkyne involves sodium (Na)/NH₃. This end up reducing to alkyne to give the trans (E) alkene.

Tautomerism: The two isomer of compound which differ only in the position of the protons and electrons. In the carbon skeleton of the compound is unchanged, a reaction which involves simple proton transfer in an intramolecular fashion it is called a tautomerism.

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Answer 5

Chapter 10, Problem 49PP

(a)

Interpretation Introduction

Interpretation:

The synthetic route for the preparation of given transformation (mechanism) should be determined.

Concept Introduction:

Birch Reduction: The conjugated alkynes and benzenes in the presence of sodium metal in liquid ammonia and alkyne produced a non-conjugated diene system.

The alkyne involves sodium (Na)/NH₃. This end up reducing to alkyne to give the trans (E) alkene.

Tautomerism: The two isomer of compound which differ only in the position of the protons and electrons. In the carbon skeleton of the compound is unchanged, a reaction which involves simple proton transfer in an intramolecular fashion it is called a tautomerism.

(b)

Interpretation Introduction

Interpretation:

The synthetic route for the preparation of given transformation (mechanism) should be determined.

Concept Introduction:

Birch Reduction: The conjugated alkynes and benzenes in the presence of sodium metal in liquid ammonia and alkyne produced a non-conjugated diene system.

The alkyne involves sodium (Na)/NH₃. This end up reducing to alkyne to give the trans (E) alkene.

Tautomerism: The two isomer of compound which differ only in the position of the protons and electrons. In the carbon skeleton of the compound is unchanged, a reaction which involves simple proton transfer in an intramolecular fashion it is called a tautomerism.

Answer 6

Chapter 10, Problem 49PP

(a)

Interpretation Introduction

Interpretation:

The synthetic route for the preparation of given transformation (mechanism) should be determined.

Concept Introduction:

Birch Reduction: The conjugated alkynes and benzenes in the presence of sodium metal in liquid ammonia and alkyne produced a non-conjugated diene system.

The alkyne involves sodium (Na)/NH₃. This end up reducing to alkyne to give the trans (E) alkene.

Tautomerism: The two isomer of compound which differ only in the position of the protons and electrons. In the carbon skeleton of the compound is unchanged, a reaction which involves simple proton transfer in an intramolecular fashion it is called a tautomerism.

Answer 7

Chapter 10, Problem 49PP

(a)

Interpretation Introduction

Interpretation:

The synthetic route for the preparation of given transformation (mechanism) should be determined.

Concept Introduction:

Birch Reduction: The conjugated alkynes and benzenes in the presence of sodium metal in liquid ammonia and alkyne produced a non-conjugated diene system.

The alkyne involves sodium (Na)/NH₃. This end up reducing to alkyne to give the trans (E) alkene.

Tautomerism: The two isomer of compound which differ only in the position of the protons and electrons. In the carbon skeleton of the compound is unchanged, a reaction which involves simple proton transfer in an intramolecular fashion it is called a tautomerism.

Answer 8

(b)

Interpretation Introduction

Interpretation:

The synthetic route for the preparation of given transformation (mechanism) should be determined.

Concept Introduction:

Birch Reduction: The conjugated alkynes and benzenes in the presence of sodium metal in liquid ammonia and alkyne produced a non-conjugated diene system.

The alkyne involves sodium (Na)/NH₃. This end up reducing to alkyne to give the trans (E) alkene.

Tautomerism: The two isomer of compound which differ only in the position of the protons and electrons. In the carbon skeleton of the compound is unchanged, a reaction which involves simple proton transfer in an intramolecular fashion it is called a tautomerism.

Answer 9

(b)

Interpretation Introduction

Interpretation:

The synthetic route for the preparation of given transformation (mechanism) should be determined.

Concept Introduction:

Birch Reduction: The conjugated alkynes and benzenes in the presence of sodium metal in liquid ammonia and alkyne produced a non-conjugated diene system.

The alkyne involves sodium (Na)/NH₃. This end up reducing to alkyne to give the trans (E) alkene.

Tautomerism: The two isomer of compound which differ only in the position of the protons and electrons. In the carbon skeleton of the compound is unchanged, a reaction which involves simple proton transfer in an intramolecular fashion it is called a tautomerism.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 10.2 - Prob. 1LTS Ch. 10.2 - Prob. 1PTS Ch. 10.2 - Prob. 2ATS Ch. 10.2 - Prob. 3ATS Ch. 10.2 - Prob. 4ATS Ch. 10.3 - Prob. 2LTS Ch. 10.3 - Prob. 5PTS Ch. 10.3 - Prob. 6ATS Ch. 10.4 - Prob. 7CC Ch. 10.4 - Prob. 8CC

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