Draw the major product of the following reactions and include stereochemistry in products. PBR3 pyridine OH 1. TSCI/pyr. 2. NaCN H3C HI

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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**Instructions:**
Draw the major product of the following reactions and include stereochemistry in the products.

**Reactions:**

1. **Starting Material:**
   - Structure: Alcohol (OH group on a butane chain with branching on the second carbon).
   - Reagents: 
     - PBr₃
     - pyridine
   
2. **Starting Material:**
   - Structure: Cyclohexyl alcohol with a methyl group on the axial position.
   - Reagents: 
     - 1. TsCl/pyr.
     - 2. NaCN

3. **Starting Material:**
   - Structure: Isobutylene.
   - Reagent: HI

4. **Starting Material:**
   - Structure: 2-methylcyclopentanol with an oxygen atom and two axial positions (H and CH₃).
   - Reagents: 
     - CH₃OH
     - H₂SO₄

5. **Starting Material:**
   - Structure: 2-methylcyclopentanol with an oxygen atom and two axial positions (H and CH₃).
   - Reagents: 
     - 1. CH₃Li
     - 2. H⁺, H₂O

6. **Starting Material:**
   - Structure: 1-bromobutene (Br attached to terminal alkene).
   - Reagent: (CH₃)₂CuLi

7. **Starting Material:**
   - Structure: Tert-butylamine derivative with N(CH₃)₂.
   - Reagents: 
     - 1. H₂O₂
     - 2. Δ (heat)
Transcribed Image Text:**Instructions:** Draw the major product of the following reactions and include stereochemistry in the products. **Reactions:** 1. **Starting Material:** - Structure: Alcohol (OH group on a butane chain with branching on the second carbon). - Reagents: - PBr₃ - pyridine 2. **Starting Material:** - Structure: Cyclohexyl alcohol with a methyl group on the axial position. - Reagents: - 1. TsCl/pyr. - 2. NaCN 3. **Starting Material:** - Structure: Isobutylene. - Reagent: HI 4. **Starting Material:** - Structure: 2-methylcyclopentanol with an oxygen atom and two axial positions (H and CH₃). - Reagents: - CH₃OH - H₂SO₄ 5. **Starting Material:** - Structure: 2-methylcyclopentanol with an oxygen atom and two axial positions (H and CH₃). - Reagents: - 1. CH₃Li - 2. H⁺, H₂O 6. **Starting Material:** - Structure: 1-bromobutene (Br attached to terminal alkene). - Reagent: (CH₃)₂CuLi 7. **Starting Material:** - Structure: Tert-butylamine derivative with N(CH₃)₂. - Reagents: - 1. H₂O₂ - 2. Δ (heat)
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