The relationship of the OH groups at C2 and C3 in the β-pyranose form of D-ribose is to be identified. Concept introduction: The basic chair conformation of cyclohexane is shown below: Two substituents are cis to each other if they are on the same side of the ring. Two substituents are trans to each other if they are on the opposite side of the ring. When the torsion angle between two substituents is approximately 60° , their relationship is gauche. When the torsion angle between two substituents is approximately 180° , their relationship is anti. When the torsion angle between two substituents is approximately 0° , their relationship is eclipsed.

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Answer 1

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Chapter 3, Problem 50DSP

Interpretation Introduction

Interpretation:

The relationship of the OH groups at C2 and C3 in the β-pyranose form of D-ribose is to be identified.

Concept introduction:

The basic chair conformation of cyclohexane is shown below:

Two substituents are cis to each other if they are on the same side of the ring.

Two substituents are trans to each other if they are on the opposite side of the ring.

When the torsion angle between two substituents is approximately 60°, their relationship is gauche.

When the torsion angle between two substituents is approximately 180°, their relationship is anti.

When the torsion angle between two substituents is approximately 0°, their relationship is eclipsed.

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Answer 2

Question

Chapter 3, Problem 50DSP

Interpretation Introduction

Interpretation:

The relationship of the OH groups at C2 and C3 in the β-pyranose form of D-ribose is to be identified.

Concept introduction:

The basic chair conformation of cyclohexane is shown below:

Two substituents are cis to each other if they are on the same side of the ring.

Two substituents are trans to each other if they are on the opposite side of the ring.

When the torsion angle between two substituents is approximately 60°, their relationship is gauche.

When the torsion angle between two substituents is approximately 180°, their relationship is anti.

When the torsion angle between two substituents is approximately 0°, their relationship is eclipsed.

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Answer 3

Question

Chapter 3, Problem 50DSP

Interpretation Introduction

Interpretation:

The relationship of the OH groups at C2 and C3 in the β-pyranose form of D-ribose is to be identified.

Concept introduction:

The basic chair conformation of cyclohexane is shown below:

Two substituents are cis to each other if they are on the same side of the ring.

Two substituents are trans to each other if they are on the opposite side of the ring.

When the torsion angle between two substituents is approximately 60°, their relationship is gauche.

When the torsion angle between two substituents is approximately 180°, their relationship is anti.

When the torsion angle between two substituents is approximately 0°, their relationship is eclipsed.

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Answer 4

Question

Chapter 3, Problem 50DSP

Interpretation Introduction

Interpretation:

The relationship of the OH groups at C2 and C3 in the β-pyranose form of D-ribose is to be identified.

Concept introduction:

The basic chair conformation of cyclohexane is shown below:

Two substituents are cis to each other if they are on the same side of the ring.

Two substituents are trans to each other if they are on the opposite side of the ring.

When the torsion angle between two substituents is approximately 60°, their relationship is gauche.

When the torsion angle between two substituents is approximately 180°, their relationship is anti.

When the torsion angle between two substituents is approximately 0°, their relationship is eclipsed.

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Answer 5

Chapter 3, Problem 50DSP

Interpretation Introduction

Interpretation:

The relationship of the OH groups at C2 and C3 in the β-pyranose form of D-ribose is to be identified.

Concept introduction:

The basic chair conformation of cyclohexane is shown below:

Two substituents are cis to each other if they are on the same side of the ring.

Two substituents are trans to each other if they are on the opposite side of the ring.

When the torsion angle between two substituents is approximately 60°, their relationship is gauche.

When the torsion angle between two substituents is approximately 180°, their relationship is anti.

When the torsion angle between two substituents is approximately 0°, their relationship is eclipsed.

Answer 6

Chapter 3, Problem 50DSP

Interpretation Introduction

Interpretation:

The relationship of the OH groups at C2 and C3 in the β-pyranose form of D-ribose is to be identified.

Concept introduction:

The basic chair conformation of cyclohexane is shown below:

Two substituents are cis to each other if they are on the same side of the ring.

Two substituents are trans to each other if they are on the opposite side of the ring.

When the torsion angle between two substituents is approximately 60°, their relationship is gauche.

When the torsion angle between two substituents is approximately 180°, their relationship is anti.

When the torsion angle between two substituents is approximately 0°, their relationship is eclipsed.

Answer 7

Chapter 3, Problem 50DSP

Interpretation Introduction

Interpretation:

The relationship of the OH groups at C2 and C3 in the β-pyranose form of D-ribose is to be identified.

Concept introduction:

The basic chair conformation of cyclohexane is shown below:

Two substituents are cis to each other if they are on the same side of the ring.

Two substituents are trans to each other if they are on the opposite side of the ring.

When the torsion angle between two substituents is approximately 60°, their relationship is gauche.

When the torsion angle between two substituents is approximately 180°, their relationship is anti.

When the torsion angle between two substituents is approximately 0°, their relationship is eclipsed.

Answer 8

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Answer 10

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Answer 11

Ch. 3.1 - Identify the alkanes corresponding to each of the...Ch. 3.1 - Find the conformations in Figure 3.4 in which the...Ch. 3.2 - Sketch a potential energy diagram for rotation...Ch. 3.2 - Acetylcholine is a neurotransmitter in the central...Ch. 3.2 - Prob. 5P Ch. 3.5 - The heats of combustion of ethylcyclopropane and...Ch. 3.8 - Prob. 7P Ch. 3.10 - The following questions relate to a cyclohexane...Ch. 3.10 - Draw the most stable conformation of...Ch. 3.11 - Prob. 10P

Solution Summary: The author explains the relationship of the OH groups at C2 and C3 in the D-ribose form.

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