(a) Interpretation: Whether the given carbonyl group requires protection is to be determined. Concept introduction: The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

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Answer 1

Question

Chapter 19, Problem 19.47P

Interpretation Introduction

(a)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Interpretation Introduction

(b)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Interpretation Introduction

(c)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Interpretation Introduction

(d)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

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(a 4 shows scanning electron microscope (SEM) images of extruded actions of packing bed for two capillary columns of different diameters, al 750 (bottom image) and b) 30-μm-i.d. Both columns are packed with the same stationary phase, spherical particles with 1-um diameter. A) When the columns were prepared, the figure shows that the column with the larger diameter has more packing irregularities. Explain this observation. B) Predict what affect this should have on band broadening and discuss your prediction using the van Deemter terms. C) Does this figure support your explanations in application question 33? Explain why or why not and make any changes in your answers in light of this figure. Figure 4 SEM images of sections of packed columns for a) 750 and b) 30-um-i.d. capillary columns.³

fcrip = ↓ bandwidth Il temp 32. What impact (increase, decrease, or no change) does each of the following conditions have on the individual components of the van Deemter equation and consequently, band broadening? Increase temperature Longer column Using a gas mobile phase instead of liquid Smaller particle stationary phase Multiple Paths Diffusion Mass Transfer

Answer 2

Question

Chapter 19, Problem 19.47P

Interpretation Introduction

(a)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Interpretation Introduction

(b)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Interpretation Introduction

(c)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Interpretation Introduction

(d)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

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Answer 3

Question

Chapter 19, Problem 19.47P

Interpretation Introduction

(a)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Interpretation Introduction

(b)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Interpretation Introduction

(c)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Interpretation Introduction

(d)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

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Answer 4

Question

Chapter 19, Problem 19.47P

Interpretation Introduction

(a)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Interpretation Introduction

(b)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Interpretation Introduction

(c)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Interpretation Introduction

(d)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

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Answer 5

Chapter 19, Problem 19.47P

Interpretation Introduction

(a)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Interpretation Introduction

(b)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Interpretation Introduction

(c)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Interpretation Introduction

(d)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Answer 6

Chapter 19, Problem 19.47P

Interpretation Introduction

(a)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Answer 7

Chapter 19, Problem 19.47P

Interpretation Introduction

(a)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Answer 8

Interpretation Introduction

(b)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Answer 9

Interpretation Introduction

(b)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Answer 10

Interpretation Introduction

(c)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Answer 11

Interpretation Introduction

(c)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Answer 12

Interpretation Introduction

(d)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Answer 13

Interpretation Introduction

(d)

Interpretation:

Whether the given carbonyl group requires protection is to be determined.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. The protecting group can be removed once the desired reaction is carried out, and the original functional group is restored.

Answer 14

Expert Solution & Answer

Answer 15

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Answer 16

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Answer 17

Ch. 19 - Prob. 19.1P Ch. 19 - Prob. 19.2P Ch. 19 - Prob. 19.3P Ch. 19 - Prob. 19.4P Ch. 19 - Prob. 19.5P Ch. 19 - Prob. 19.6P Ch. 19 - Prob. 19.7P Ch. 19 - Prob. 19.8P Ch. 19 - Prob. 19.9P Ch. 19 - Prob. 19.10P

Solution Summary: The author explains that the carbonyl in the given substrate needs to be protected on the basis of reaction condition.

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Chapter 19 Solutions