Organic Chemistry Plus Masteringchemistry With Pearson Etext, Global Edition
Organic Chemistry Plus Masteringchemistry With Pearson Etext, Global Edition
9th Edition
ISBN: 9781292151229
Author: Wade, LeRoy G.
Publisher: PEARSON
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Chapter 5, Problem 5.34SP

(a)

Interpretation Introduction

To drraw: The structure of (S)2iodobutane.

Interpretation: The structure of (S)2iodobutane is to be drawn.

Concept introduction: The enantiomers of a chiral compound can be named with the help of right hand and left hand configuration. In fisher projection, chiral carbon atom is represented by a cross. When two groups on a fisher projection are interchanged, the configuration of chiral carbon also changes from (R) to (S) or (S) to (R).

(b)

Interpretation Introduction

To determine: The specific rotation of (R)2iodobutane.

Interpretation: The specific rotation of (R)2iodobutane is to be drawn.

Concept introduction: The enantiomers of a chiral compound can be named the help of right hand and left hand configuration. In fisher projection, chiral carbon atom is represented by a cross. When two groups on a fisher projection are interchanged, the configuration of chiral carbon also changes from (R) to (S) or (S) to (R).

(c)

Interpretation Introduction

To determine: The percentage composition of a mixture of (R) and (S)2iodobutane.

Interpretation: The percentage composition of a mixture of (R) and (S)2iodobutane is to be calculated on the basis of the given information.

Concept introduction: The enantiomers of a chiral compound can be named with the help of right hand and left hand configuration. In fisher projection, chiral carbon atom is represented by a cross. When two groups on a fisher projection are interchanged, the configuration of chiral carbon also changes from (R) to (S) or (S) to (R).

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Students have asked these similar questions
5. The specific rotation of (S)-2-iodobutane is +15.90°. Draw the structure of (S)-2- iodobutane, predict the specific rotation of (R)-2-iodobutane, and determine the percentage composition of a mixture of (R)- and (S)-2-iodobutane with a specific rotation of -7.95°.
The specific rotation of (S)-carvone (at 20 degrees) is +61. A chemist prepared a mixture of (R)-carvone and its enantiomer, and this mixture had an observed rotation of -55.  (a) What is the specific rotation of (R)-carvone at 20 degrees?
The specific rotation of (S)-carvone (at 20 degrees) is +61. A chemist prepared a mixture of (R)-carvone and its enantiomer, and this mixture had an observed rotation of -55.  (a) What is the specific rotation of (R)-carvone at 20 degrees? (b) What percentage of the mixture is (S)- carvone? Choose from the following options.  1. 90% (S)-carvone and 10% (R) 2. 10% (S)-carvone and 90% (R) 3. 95% (S)-carvone and 5% (R) 4. 5% (S)- carvone and 95% (R)
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