(a) Interpretation: The hemiacetal carbon and the −OH group in the hemiacetal carbon should be identified. Concept introduction: When an alcohol and ether group are attached to the same carbon, it is called the hemiacetal carbon.

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Answer 1

Question

Chapter 20, Problem 35P

Interpretation Introduction

(a)

Interpretation:

The hemiacetal carbon and the −OH group in the hemiacetal carbon should be identified.

Concept introduction:

When an alcohol and ether group are attached to the same carbon, it is called the hemiacetal carbon.

Interpretation Introduction

(b)

Interpretation:

The 4 Hydroxyl groups should be classified as primary (1 °), secondary (2 °) & tertiary (3 °) hydroxyls.

Concept introduction:

Depending on the no. of Hydrogen atoms attached to the Carbon atom with hydroxyl group (-OH), they can be classified as primary (1 °), secondary (2 °) & tertiary (3 °) hydroxyls.

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1. Calculate the accurate monoisotopic mass (using all 1H, 12C, 14N, 160 and 35CI) for your product using the table in your lab manual. Don't include the Cl, since you should only have [M+H]*. Compare this to the value you see on the LC-MS printout. How much different are they? 2. There are four isotopic peaks for the [M+H]* ion at m/z 240, 241, 242 and 243. For one point of extra credit, explain what each of these is and why they are present. 3. There is a fragment ion at m/z 184. For one point of extra credit, identify this fragment and confirm by calculating the accurate monoisotopic mass. 4. The UV spectrum is also at the bottom of your printout. For one point of extra credit, look up the UV spectrum of bupropion on Google Images and compare to your spectrum. Do they match? Cite your source. 5. For most of you, there will be a second chromatographic peak whose m/z is 74 (to a round number). For one point of extra credit, see if you can identify this molecule as well and confirm by…

Please draw, not just describe!

can you draw each step on a piece of a paper please this is very confusing to me

Answer 2

Question

Chapter 20, Problem 35P

Interpretation Introduction

(a)

Interpretation:

The hemiacetal carbon and the −OH group in the hemiacetal carbon should be identified.

Concept introduction:

When an alcohol and ether group are attached to the same carbon, it is called the hemiacetal carbon.

Interpretation Introduction

(b)

Interpretation:

The 4 Hydroxyl groups should be classified as primary (1 °), secondary (2 °) & tertiary (3 °) hydroxyls.

Concept introduction:

Depending on the no. of Hydrogen atoms attached to the Carbon atom with hydroxyl group (-OH), they can be classified as primary (1 °), secondary (2 °) & tertiary (3 °) hydroxyls.

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Answer 3

Question

Chapter 20, Problem 35P

Interpretation Introduction

(a)

Interpretation:

The hemiacetal carbon and the −OH group in the hemiacetal carbon should be identified.

Concept introduction:

When an alcohol and ether group are attached to the same carbon, it is called the hemiacetal carbon.

Interpretation Introduction

(b)

Interpretation:

The 4 Hydroxyl groups should be classified as primary (1 °), secondary (2 °) & tertiary (3 °) hydroxyls.

Concept introduction:

Depending on the no. of Hydrogen atoms attached to the Carbon atom with hydroxyl group (-OH), they can be classified as primary (1 °), secondary (2 °) & tertiary (3 °) hydroxyls.

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Answer 4

Question

Chapter 20, Problem 35P

Interpretation Introduction

(a)

Interpretation:

The hemiacetal carbon and the −OH group in the hemiacetal carbon should be identified.

Concept introduction:

When an alcohol and ether group are attached to the same carbon, it is called the hemiacetal carbon.

Interpretation Introduction

(b)

Interpretation:

The 4 Hydroxyl groups should be classified as primary (1 °), secondary (2 °) & tertiary (3 °) hydroxyls.

Concept introduction:

Depending on the no. of Hydrogen atoms attached to the Carbon atom with hydroxyl group (-OH), they can be classified as primary (1 °), secondary (2 °) & tertiary (3 °) hydroxyls.

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Answer 5

Chapter 20, Problem 35P

Interpretation Introduction

(a)

Interpretation:

The hemiacetal carbon and the −OH group in the hemiacetal carbon should be identified.

Concept introduction:

When an alcohol and ether group are attached to the same carbon, it is called the hemiacetal carbon.

Interpretation Introduction

(b)

Interpretation:

The 4 Hydroxyl groups should be classified as primary (1 °), secondary (2 °) & tertiary (3 °) hydroxyls.

Concept introduction:

Depending on the no. of Hydrogen atoms attached to the Carbon atom with hydroxyl group (-OH), they can be classified as primary (1 °), secondary (2 °) & tertiary (3 °) hydroxyls.

Answer 6

Chapter 20, Problem 35P

Interpretation Introduction

(a)

Interpretation:

The hemiacetal carbon and the −OH group in the hemiacetal carbon should be identified.

Concept introduction:

When an alcohol and ether group are attached to the same carbon, it is called the hemiacetal carbon.

Answer 7

Chapter 20, Problem 35P

Interpretation Introduction

(a)

Interpretation:

The hemiacetal carbon and the −OH group in the hemiacetal carbon should be identified.

Concept introduction:

When an alcohol and ether group are attached to the same carbon, it is called the hemiacetal carbon.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The 4 Hydroxyl groups should be classified as primary (1 °), secondary (2 °) & tertiary (3 °) hydroxyls.

Concept introduction:

Depending on the no. of Hydrogen atoms attached to the Carbon atom with hydroxyl group (-OH), they can be classified as primary (1 °), secondary (2 °) & tertiary (3 °) hydroxyls.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The 4 Hydroxyl groups should be classified as primary (1 °), secondary (2 °) & tertiary (3 °) hydroxyls.

Concept introduction:

Depending on the no. of Hydrogen atoms attached to the Carbon atom with hydroxyl group (-OH), they can be classified as primary (1 °), secondary (2 °) & tertiary (3 °) hydroxyls.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 20.1 - Label the hemiacetal carbonthe carbon bonded to...Ch. 20.2 - Prob. 20.1PP Ch. 20.2 - Prob. 20.2P Ch. 20.2 - Prob. 20.3P Ch. 20.2 - Prob. 20.4P Ch. 20.2 - Prob. 20.5P Ch. 20.2 - Prob. 20.2PP Ch. 20.2 - Prob. 20.6P Ch. 20.2 - Prob. 20.7P Ch. 20.3 - Prob. 20.8P

(a) Interpretation: The hemiacetal carbon and the −OH group in the hemiacetal carbon should be identified. Concept introduction: When an alcohol and ether group are attached to the same carbon, it is called the hemiacetal carbon.

Solution Summary: The author explains that hemiacetal carbon and OH group should be identified. The monosaccharide is presented in the Haworth projection.

Concept explainers

(a)

Interpretation:

The hemiacetal carbon and the −OH group in the hemiacetal carbon should be identified.

Concept introduction:

When an alcohol and ether group are attached to the same carbon, it is called the hemiacetal carbon.

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Chapter 20 Solutions