Devise a synthesis to prepare 2,7-dimethyldec-5-yn-3-ol from 1,2-epoxy-3-methylbutane and 3-methyl-1-hexene. Part 1: Draw the structure for compound A. Part 2: Identify the required reagents for step 1. Select the single best answer. Part 3: Identify the required reagents for step 2. Select the single best answer.
Devise a synthesis to prepare 2,7-dimethyldec-5-yn-3-ol from 1,2-epoxy-3-methylbutane and 3-methyl-1-hexene. Part 1: Draw the structure for compound A. Part 2: Identify the required reagents for step 1. Select the single best answer. Part 3: Identify the required reagents for step 2. Select the single best answer.
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Devise a synthesis to prepare 2,7-dimethyldec-5-yn-3-ol from 1,2-epoxy-3-methylbutane and 3-methyl-1-hexene.
Part 1: Draw the structure for compound A.
Part 2: Identify the required reagents for step 1. Select the single best answer.
Part 3: Identify the required reagents for step 2. Select the single best answer.
Transcribed Image Text:**Title:** Synthesis of 2,7-Dimethyldec-5-yn-3-ol
**Objective:** Devise a synthesis to prepare 2,7-dimethyldec-5-yn-3-ol from 1,2-epoxy-3-methylbutane and 3-methyl-1-hexene.
---
**Reaction Scheme:**
1. **Starting Materials:**
- 1,2-Epoxy-3-methylbutane
- 3-Methyl-1-hexene
2. **Reaction Sequence:**
- **Initial Step:**
- Combine 3-methyl-1-hexene with chlorine (Cl<sub>2</sub>).
- Product 'A' is formed.
- **Step 1:**
- React product 'A' with 1,2-epoxy-3-methylbutane.
- Intermediate product is formed with an alkyne group positioned in the middle of the chain.
- **Step 2:**
- Final transformation to the target molecule: 2,7-dimethyldec-5-yn-3-ol, featuring a hydroxyl (OH) group on the tertiary carbon adjacent to the alkyne.
**Diagram Key:**
- The reaction involves epoxide opening and alkyne formation.
- The structures show alkyne, epoxide, and alcohol functional groups emphasizing the synthetic strategy.
**Conclusion:**
The resulting molecule, 2,7-dimethyldec-5-yn-3-ol, is synthesized through strategic use of addition, elimination, and functional group transformation reactions. This showcases the integration of knowledge on epoxides and alkynes in organic synthesis.
![### Chemistry Problem Set
#### Part 1 of 3
**Task:** Draw the structure for compound A.
- **Instructions:** Click and drag to start drawing a structure.
[Interactive Drawing Box]
---
#### Part 2 of 3
**Task:** Identify the required reagent(s) for step 1. Select the single best answer.
- **Options:**
- NaN₃
- NaNH₂ (1 eq.)
- Na, NH₃
- NaNH₂ (2 eq.)
- KOC(CH₃)₃
---
#### Part 3 of 3
**Task:** Identify the required reagent(s) for step 2. Select the single best answer.
- **Options:**
- NaNH₂
- H₂SO₄
- 1. NaOH; 2. H₂O
- Na, NH₃
- 1. NaNH₂; 2. H₂O
---
Use the interface to select your answers and submit your responses. Each question is designed to test your understanding of chemical reactions and reagent selection.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6e060dcc-1dab-49aa-a103-8d6bb1a3a288%2Fde594779-a688-499f-a6f0-34f38c411086%2F4idajnr_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Chemistry Problem Set
#### Part 1 of 3
**Task:** Draw the structure for compound A.
- **Instructions:** Click and drag to start drawing a structure.
[Interactive Drawing Box]
---
#### Part 2 of 3
**Task:** Identify the required reagent(s) for step 1. Select the single best answer.
- **Options:**
- NaN₃
- NaNH₂ (1 eq.)
- Na, NH₃
- NaNH₂ (2 eq.)
- KOC(CH₃)₃
---
#### Part 3 of 3
**Task:** Identify the required reagent(s) for step 2. Select the single best answer.
- **Options:**
- NaNH₂
- H₂SO₄
- 1. NaOH; 2. H₂O
- Na, NH₃
- 1. NaNH₂; 2. H₂O
---
Use the interface to select your answers and submit your responses. Each question is designed to test your understanding of chemical reactions and reagent selection.
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Step 1: Organic synthesis
VIEWStep 2: Outline of the reaction.
VIEWStep 3: Determining the structure of A
VIEWStep 4: Identifying the reagent for step 1
VIEWStep 5: Explanation for wrong options.
VIEWStep 6: Identifying the reagent for step 2
VIEWStep 7: Identifying the reagent for step 2
VIEWStep 8: Explanation for wrong options.
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