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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![**Question:**
Which of the following are major products of the reaction shown?
[Image of reaction pathway]
\[ \text{Chemical Equation:} \]
\[ \text{Reactant (Alkene)} \xrightarrow{h\nu} \text{? (In presence of NBS)} \]
**Products (Structural Formulas):**
I:  \
II:  \
III:  \
IV: 
**Options:**
A. I \
B. I, II \
C. I, IV \
D. I, III \
E. I, II, III, IV
**Explanation:**
The reaction involves the use of NBS (N-Bromosuccinimide) with ultraviolet light (hν), which is typically used for the allylic bromination of alkenes. The goal is to determine which products listed are major products of this reaction.
**Products Analysis:**
- **Structure I** is an allylic bromide with the bromine attached to the carbon adjacent to the double bond.
- **Structure II** is a different structural isomer with bromine attached to another allylic position.
- **Structure III** features bromine attached at yet another allylic position.
- **Structure IV** has bromine again at an allylic position but in a different configuration.
For the answer to this multiple-choice question, one needs to identify the allylic positions in the intermediate structure formed during the reaction with NBS and identify which products could reasonably be formed as major products.
*Note: The detailed structural formulas of products I-IV are crucial for visual identification and analysis.*
**Answer Options:**
A. I \
B. I, II \
C. I, IV \
D. I, III \
E. I, II, III, IV](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fec41627d-7715-46d4-accb-fe042454172c%2F6ac3a24b-2cda-43b5-90bd-ef687e07aeb2%2F3s7myvl_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Question:**
Which of the following are major products of the reaction shown?
[Image of reaction pathway]
\[ \text{Chemical Equation:} \]
\[ \text{Reactant (Alkene)} \xrightarrow{h\nu} \text{? (In presence of NBS)} \]
**Products (Structural Formulas):**
I:  \
II:  \
III:  \
IV: 
**Options:**
A. I \
B. I, II \
C. I, IV \
D. I, III \
E. I, II, III, IV
**Explanation:**
The reaction involves the use of NBS (N-Bromosuccinimide) with ultraviolet light (hν), which is typically used for the allylic bromination of alkenes. The goal is to determine which products listed are major products of this reaction.
**Products Analysis:**
- **Structure I** is an allylic bromide with the bromine attached to the carbon adjacent to the double bond.
- **Structure II** is a different structural isomer with bromine attached to another allylic position.
- **Structure III** features bromine attached at yet another allylic position.
- **Structure IV** has bromine again at an allylic position but in a different configuration.
For the answer to this multiple-choice question, one needs to identify the allylic positions in the intermediate structure formed during the reaction with NBS and identify which products could reasonably be formed as major products.
*Note: The detailed structural formulas of products I-IV are crucial for visual identification and analysis.*
**Answer Options:**
A. I \
B. I, II \
C. I, IV \
D. I, III \
E. I, II, III, IV
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