(a) Interpretation: The method used in the preparation of α-phenylglycine and the corresponding equation is to be stated. The reason as to why a method does not work in the preparation of α- phenylglycine is to be stated. Concept introduction: The chemical compounds in which carbon is bonded with the acidic and basic group along with hydrocarbon side chain are known as amino acids. The amino acids are classified into acidic, basic, polar, non-polar, essential, and non-essential categories.

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Answer 1

Question

Chapter 27, Problem 27.12P

Interpretation Introduction

(a)

Interpretation:

The method used in the preparation of α-phenylglycine and the corresponding equation is to be stated. The reason as to why a method does not work in the preparation of α- phenylglycine is to be stated.

Concept introduction:

The chemical compounds in which carbon is bonded with the acidic and basic group along with hydrocarbon side chain are known as amino acids. The amino acids are classified into acidic, basic, polar, non-polar, essential, and non-essential categories.

Interpretation Introduction

(b)

Interpretation:

The method used in the preparation of leucine and the corresponding equation is to be stated. The reason as to why a method does not work in the preparation of leucine is to be stated.

Concept introduction:

The chemical compounds in which carbon is bonded with the acidic and basic group along with hydrocarbon side chain are known as amino acids. The amino acids are classified into acidic, basic, polar, non-polar, essential, and non-essential categories.

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Part II. two unbranched ketone have molecular formulla (C8H100). El-ms showed that both of them have a molecular ion peak at m/2 =128. However ketone (A) has a fragment peak at m/2 = 99 and 72 while ketone (B) snowed a fragment peak at m/2 = 113 and 58. 9) Propose the most plausible structures for both ketones b) Explain how you arrived at your conclusion by drawing the Structures of the distinguishing fragments for each ketone, including their fragmentation mechanisms.

Answer 2

Question

Chapter 27, Problem 27.12P

Interpretation Introduction

(a)

Interpretation:

The method used in the preparation of α-phenylglycine and the corresponding equation is to be stated. The reason as to why a method does not work in the preparation of α- phenylglycine is to be stated.

Concept introduction:

The chemical compounds in which carbon is bonded with the acidic and basic group along with hydrocarbon side chain are known as amino acids. The amino acids are classified into acidic, basic, polar, non-polar, essential, and non-essential categories.

Interpretation Introduction

(b)

Interpretation:

The method used in the preparation of leucine and the corresponding equation is to be stated. The reason as to why a method does not work in the preparation of leucine is to be stated.

Concept introduction:

The chemical compounds in which carbon is bonded with the acidic and basic group along with hydrocarbon side chain are known as amino acids. The amino acids are classified into acidic, basic, polar, non-polar, essential, and non-essential categories.

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Answer 3

Question

Chapter 27, Problem 27.12P

Interpretation Introduction

(a)

Interpretation:

The method used in the preparation of α-phenylglycine and the corresponding equation is to be stated. The reason as to why a method does not work in the preparation of α- phenylglycine is to be stated.

Concept introduction:

The chemical compounds in which carbon is bonded with the acidic and basic group along with hydrocarbon side chain are known as amino acids. The amino acids are classified into acidic, basic, polar, non-polar, essential, and non-essential categories.

Interpretation Introduction

(b)

Interpretation:

The method used in the preparation of leucine and the corresponding equation is to be stated. The reason as to why a method does not work in the preparation of leucine is to be stated.

Concept introduction:

The chemical compounds in which carbon is bonded with the acidic and basic group along with hydrocarbon side chain are known as amino acids. The amino acids are classified into acidic, basic, polar, non-polar, essential, and non-essential categories.

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Answer 4

Question

Chapter 27, Problem 27.12P

Interpretation Introduction

(a)

Interpretation:

The method used in the preparation of α-phenylglycine and the corresponding equation is to be stated. The reason as to why a method does not work in the preparation of α- phenylglycine is to be stated.

Concept introduction:

The chemical compounds in which carbon is bonded with the acidic and basic group along with hydrocarbon side chain are known as amino acids. The amino acids are classified into acidic, basic, polar, non-polar, essential, and non-essential categories.

Interpretation Introduction

(b)

Interpretation:

The method used in the preparation of leucine and the corresponding equation is to be stated. The reason as to why a method does not work in the preparation of leucine is to be stated.

Concept introduction:

The chemical compounds in which carbon is bonded with the acidic and basic group along with hydrocarbon side chain are known as amino acids. The amino acids are classified into acidic, basic, polar, non-polar, essential, and non-essential categories.

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Answer 5

Chapter 27, Problem 27.12P

Interpretation Introduction

(a)

Interpretation:

The method used in the preparation of α-phenylglycine and the corresponding equation is to be stated. The reason as to why a method does not work in the preparation of α- phenylglycine is to be stated.

Concept introduction:

The chemical compounds in which carbon is bonded with the acidic and basic group along with hydrocarbon side chain are known as amino acids. The amino acids are classified into acidic, basic, polar, non-polar, essential, and non-essential categories.

Interpretation Introduction

(b)

Interpretation:

The method used in the preparation of leucine and the corresponding equation is to be stated. The reason as to why a method does not work in the preparation of leucine is to be stated.

Concept introduction:

The chemical compounds in which carbon is bonded with the acidic and basic group along with hydrocarbon side chain are known as amino acids. The amino acids are classified into acidic, basic, polar, non-polar, essential, and non-essential categories.

Answer 6

Chapter 27, Problem 27.12P

Interpretation Introduction

(a)

Interpretation:

The method used in the preparation of α-phenylglycine and the corresponding equation is to be stated. The reason as to why a method does not work in the preparation of α- phenylglycine is to be stated.

Concept introduction:

The chemical compounds in which carbon is bonded with the acidic and basic group along with hydrocarbon side chain are known as amino acids. The amino acids are classified into acidic, basic, polar, non-polar, essential, and non-essential categories.

Answer 7

Chapter 27, Problem 27.12P

Interpretation Introduction

(a)

Interpretation:

The method used in the preparation of α-phenylglycine and the corresponding equation is to be stated. The reason as to why a method does not work in the preparation of α- phenylglycine is to be stated.

Concept introduction:

The chemical compounds in which carbon is bonded with the acidic and basic group along with hydrocarbon side chain are known as amino acids. The amino acids are classified into acidic, basic, polar, non-polar, essential, and non-essential categories.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The method used in the preparation of leucine and the corresponding equation is to be stated. The reason as to why a method does not work in the preparation of leucine is to be stated.

Concept introduction:

The chemical compounds in which carbon is bonded with the acidic and basic group along with hydrocarbon side chain are known as amino acids. The amino acids are classified into acidic, basic, polar, non-polar, essential, and non-essential categories.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The method used in the preparation of leucine and the corresponding equation is to be stated. The reason as to why a method does not work in the preparation of leucine is to be stated.

Concept introduction:

The chemical compounds in which carbon is bonded with the acidic and basic group along with hydrocarbon side chain are known as amino acids. The amino acids are classified into acidic, basic, polar, non-polar, essential, and non-essential categories.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 27 - Prob. 27.1P Ch. 27 - Prob. 27.2P Ch. 27 - Prob. 27.3P Ch. 27 - Prob. 27.4P Ch. 27 - Prob. 27.5P Ch. 27 - Prob. 27.6P Ch. 27 - Prob. 27.8P Ch. 27 - Prob. 27.9P Ch. 27 - Prob. 27.10P Ch. 27 - Prob. 27.11P

Solution Summary: The author explains that the preferred method for the preparation of -phenylglycine is Strecker method. The inductive effect of carboxylate ion destabilizes the system.

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