Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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
Cyclopentane (left) reacts with a reagent (indicated by a question mark) to form bromocyclopentane plus an enantiomer (right).
**Options:**
A. \( \text{Br}_2 \)
B. \( \text{PBr}_3 \)
C. \( \text{CH}_3\text{Br} \)
D. \( \text{NBS, heat} \)
**Explanation:**
This question is asking which reagent can be used to best achieve the conversion of cyclopentane into bromocyclopentane resulting in a racemic mixture of enantiomers. The correct answer is the option involving N-Bromosuccinimide (\(\text{NBS}\)) with heat because this reagent is known to facilitate the bromination of alkanes at the allylic position, forming a racemic mixture. This indicates that the correct choice is:
**D. \( \text{NBS, heat} \)**](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fec41627d-7715-46d4-accb-fe042454172c%2Ffd373f0b-5077-40c9-81a3-a4c548494358%2Ffwz01ao_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Problem Statement:**
What reagents would best accomplish the following synthesis?

Cyclopentane (left) reacts with a reagent (indicated by a question mark) to form bromocyclopentane plus an enantiomer (right).
**Options:**
A. \( \text{Br}_2 \)
B. \( \text{PBr}_3 \)
C. \( \text{CH}_3\text{Br} \)
D. \( \text{NBS, heat} \)
**Explanation:**
This question is asking which reagent can be used to best achieve the conversion of cyclopentane into bromocyclopentane resulting in a racemic mixture of enantiomers. The correct answer is the option involving N-Bromosuccinimide (\(\text{NBS}\)) with heat because this reagent is known to facilitate the bromination of alkanes at the allylic position, forming a racemic mixture. This indicates that the correct choice is:
**D. \( \text{NBS, heat} \)**
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