Learning Target 16 Criteria for satisfactory score Reactants, products, and reagents that complete a reaction scheme must specific compounds, not generic categories. Reagents and structures must be valid Lewis structures. Tasks Complete the synthetic sequences by drawing products/substrates/reagents in empty spaces in reactions below. 1. PBr3 2. Mg, dry ether 3. CH3CH2C(O)CH3 4. H3O* (acid work-up) 1. MSCI, pyridine 2. CH3CH2SH, acetone OH 1. LIAIH4 2. H3O* 3. conc. H2SO4, heat diluted H2SO4 "OH- OH HO" HO OH racemic mixture Figure 14: Reactions
Learning Target 16 Criteria for satisfactory score Reactants, products, and reagents that complete a reaction scheme must specific compounds, not generic categories. Reagents and structures must be valid Lewis structures. Tasks Complete the synthetic sequences by drawing products/substrates/reagents in empty spaces in reactions below. 1. PBr3 2. Mg, dry ether 3. CH3CH2C(O)CH3 4. H3O* (acid work-up) 1. MSCI, pyridine 2. CH3CH2SH, acetone OH 1. LIAIH4 2. H3O* 3. conc. H2SO4, heat diluted H2SO4 "OH- OH HO" HO OH racemic mixture Figure 14: Reactions
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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Reactions of Ethers
Ethers (R-O-R’) are compounds formed by replacing hydrogen atoms of an alcohol (R-OH compound) or a phenol (C6H5OH) by an aryl/ acyl group (functional group after removing single hydrogen from an aromatic ring). In this section, reaction, preparation and behavior of ethers are discussed in the context of organic chemistry.
Epoxides
Epoxides are a special class of cyclic ethers which are an important functional group in organic chemistry and generate reactive centers due to their unusual high reactivity. Due to their high reactivity, epoxides are considered to be toxic and mutagenic.
Williamson Ether Synthesis
An organic reaction in which an organohalide and a deprotonated alcohol forms ether is known as Williamson ether synthesis. Alexander Williamson developed the Williamson ether synthesis in 1850. The formation of ether in this synthesis is an SN2 reaction.
Question
![**Learning Target 16**
**Criteria for Satisfactory Score:**
- Reactants, products, and reagents that complete a reaction scheme must specify compounds, not generic categories.
- Reagents and structures must be valid Lewis structures.
**Tasks:**
- Complete the synthetic sequences by drawing products/substrates/reagents in empty spaces in reactions below.
**Reaction Sequences:**
1. **Reaction 1:**
- Starting compound:
- An alcohol with a branched chain, depicted as HO-.
- Reagents:
- 1. PBr₃
- 2. Mg, dry ether
- 3. CH₃CH₂C(O)CH₃
- 4. H₃O⁺ (acid work-up)
- [Arrow indicating reaction progress]
2. **Reaction 2:**
- Starting compound:
- Phenol derivative with OH group on a benzene ring.
- Reagents:
- 1. MsCl, pyridine
- 2. CH₃CH₂SH, acetone
- [Arrow indicating reaction progress]
3. **Reaction 3:**
- Starting compound:
- A ketone with a benzene ring.
- Reagents:
- 1. LiAlH₄
- 2. H₃O⁺
- 3. conc. H₂SO₄, heat
- [Arrow indicating reaction progress]
4. **Reaction 4:**
- Reaction of a cyclic alkene:
- Reagent: diluted H₂SO₄
- Products:
- Two cyclic alcohols, both with OH groups in racemic forms (a mixture of stereoisomers).
5. **Figure 14: Reactions:**
- Transformation of a cyclohexene derivative into a diol.
- Starting compound:
- A cyclohexene structure.
- Final product:
- Cyclohexane with two OH groups in a racemic mixture.
This educational content outlines specific organic chemistry reactions, focusing on completing reaction schemes using concrete compounds and valid Lewis structures.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F70a89e60-f1d7-4298-af05-4430465f37b6%2Fc7da697f-8e0b-4956-9f9d-2ac62157f8cc%2F8bm8qdp_processed.png&w=3840&q=75)
Transcribed Image Text:**Learning Target 16**
**Criteria for Satisfactory Score:**
- Reactants, products, and reagents that complete a reaction scheme must specify compounds, not generic categories.
- Reagents and structures must be valid Lewis structures.
**Tasks:**
- Complete the synthetic sequences by drawing products/substrates/reagents in empty spaces in reactions below.
**Reaction Sequences:**
1. **Reaction 1:**
- Starting compound:
- An alcohol with a branched chain, depicted as HO-.
- Reagents:
- 1. PBr₃
- 2. Mg, dry ether
- 3. CH₃CH₂C(O)CH₃
- 4. H₃O⁺ (acid work-up)
- [Arrow indicating reaction progress]
2. **Reaction 2:**
- Starting compound:
- Phenol derivative with OH group on a benzene ring.
- Reagents:
- 1. MsCl, pyridine
- 2. CH₃CH₂SH, acetone
- [Arrow indicating reaction progress]
3. **Reaction 3:**
- Starting compound:
- A ketone with a benzene ring.
- Reagents:
- 1. LiAlH₄
- 2. H₃O⁺
- 3. conc. H₂SO₄, heat
- [Arrow indicating reaction progress]
4. **Reaction 4:**
- Reaction of a cyclic alkene:
- Reagent: diluted H₂SO₄
- Products:
- Two cyclic alcohols, both with OH groups in racemic forms (a mixture of stereoisomers).
5. **Figure 14: Reactions:**
- Transformation of a cyclohexene derivative into a diol.
- Starting compound:
- A cyclohexene structure.
- Final product:
- Cyclohexane with two OH groups in a racemic mixture.
This educational content outlines specific organic chemistry reactions, focusing on completing reaction schemes using concrete compounds and valid Lewis structures.
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