After days on end, the following reaction failed to produce any product at all. Explain. хон OH SOBR2 pyridine Br expected product (not observed)
After days on end, the following reaction failed to produce any product at all. Explain. хон OH SOBR2 pyridine Br expected product (not observed)
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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![**Reaction Failure Analysis**
**Context:**
In this experiment, a starting alcohol compound was reacted with thionyl bromide (SOBr₂) in the presence of pyridine. The objective was to convert the alcohol to an alkyl bromide. However, the reaction did not yield any product despite an extended reaction duration.
**Chemical Reaction:**
- **Reactant:** An alcohol with a tert-butyl group and an OH functional group.
- **Reagents:** Thionyl bromide (SOBr₂) and pyridine.
- **Expected Product:** The alcohol was expected to be converted into an alkyl bromide with the tert-butyl structure replaced with a bromine atom.
**Diagram Description:**
The diagram illustrates the reaction process:
1. On the left, the reactant with the OH group is shown.
2. An arrow points to the right, indicating the direction of the reaction.
3. The reaction conditions, SOBr₂ and pyridine, are written above the arrow.
4. A crossed-out arrow signifies that the reaction did not proceed as expected.
5. On the right, the expected product (which was not observed) is depicted as the same alkyl structure with the OH group replaced by a Br atom.
**Explanation:**
The failure to obtain the desired brominated product could be due to several factors including steric hindrance from the tert-butyl group, which may prevent the nucleophilic attack needed for the substitution. Additionally, the reaction conditions may not have been optimal for this specific substratum and reagent combination. Further analysis and alternative reagents might be needed to achieve the desired transformation.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fabe4794c-3ec2-4540-a84a-9d47d3e1c9b7%2Fa3eea427-5a01-4cff-b656-8fb40a75fd5f%2Fmq86dfa_processed.png&w=3840&q=75)
Transcribed Image Text:**Reaction Failure Analysis**
**Context:**
In this experiment, a starting alcohol compound was reacted with thionyl bromide (SOBr₂) in the presence of pyridine. The objective was to convert the alcohol to an alkyl bromide. However, the reaction did not yield any product despite an extended reaction duration.
**Chemical Reaction:**
- **Reactant:** An alcohol with a tert-butyl group and an OH functional group.
- **Reagents:** Thionyl bromide (SOBr₂) and pyridine.
- **Expected Product:** The alcohol was expected to be converted into an alkyl bromide with the tert-butyl structure replaced with a bromine atom.
**Diagram Description:**
The diagram illustrates the reaction process:
1. On the left, the reactant with the OH group is shown.
2. An arrow points to the right, indicating the direction of the reaction.
3. The reaction conditions, SOBr₂ and pyridine, are written above the arrow.
4. A crossed-out arrow signifies that the reaction did not proceed as expected.
5. On the right, the expected product (which was not observed) is depicted as the same alkyl structure with the OH group replaced by a Br atom.
**Explanation:**
The failure to obtain the desired brominated product could be due to several factors including steric hindrance from the tert-butyl group, which may prevent the nucleophilic attack needed for the substitution. Additionally, the reaction conditions may not have been optimal for this specific substratum and reagent combination. Further analysis and alternative reagents might be needed to achieve the desired transformation.
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