1. ВН/ THF 1. CHзMgBr, A 2. Н2О2, ОН", H20 2. Н2О or HзО* Give all 2 products (2 pts each)

Chemistry
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Chapter1: Chemical Foundations
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Provide the major organic product(s) for the reaction shown below
### Hydroboration of 1-Hexyne and Subsequent Reactions

**Chemical Reaction Scheme:**

The diagram depicts a two-step reaction sequence starting with 1-hexyne undergoing hydroboration followed by an organometallic reaction.

1. **First Reaction: Hydroboration-Oxidation**
   - **Reactants:** 1-hexyne, BH₃/THF
   - **Conditions:** BH₃ in tetrahydrofuran (THF) solvent
   - **Followed by:** H₂O₂ (hydrogen peroxide), OH⁻ (hydroxide ion), H₂O (water)
   - **Intermediate Product (A):** After the hydroboration-oxidation, an intermediate organic compound (A) is formed.

2. **Second Reaction: Grignard Reaction**
   - **Reactants:** Intermediate (A) from the first reaction, CH₃MgBr (methylmagnesium bromide)
   - **Conditions:** 
     - Step 1: Addition of CH₃MgBr
     - Step 2: Hydrolysis using either H₂O (water) or H₃O⁺ (hydronium ion)
   - **Final Product (B):** This results in the final organic product (B).

**Explanation of Products and Points:**
- You are required to identify the two products resulting from each step of the reaction sequence.
- Each correctly identified product earns 2 points, totaling 4 points for both products.

**Hydroboration Overview:**
- Hydroboration-oxidation is a two-step hydration reaction that transforms alkenes or alkynes into alcohols.
- BH₃ adds across the triple bond in a syn addition manner.
- Subsequent oxidation converts the organoborane intermediate into an alcohol.

**Grignard Reaction Overview:**
- The Grignard reagent (CH₃MgBr) reacts with the carbonyl group of the intermediate (A).
- The reaction forms a new carbon-carbon bond.
- Hydrolysis completes the reaction by converting the organomagnesium compound into an alcohol.

### Graph/Diagram Description:
1. **Initial Compound:** The structure diagram initially depicts 1-hexyne (a six-carbon alkyne).
2. **Arrow indicating reaction:** An arrow signifies that the 1-hexyne undergoes a transformation through specified conditions.
3. **Intermediate Product (A):
Transcribed Image Text:### Hydroboration of 1-Hexyne and Subsequent Reactions **Chemical Reaction Scheme:** The diagram depicts a two-step reaction sequence starting with 1-hexyne undergoing hydroboration followed by an organometallic reaction. 1. **First Reaction: Hydroboration-Oxidation** - **Reactants:** 1-hexyne, BH₃/THF - **Conditions:** BH₃ in tetrahydrofuran (THF) solvent - **Followed by:** H₂O₂ (hydrogen peroxide), OH⁻ (hydroxide ion), H₂O (water) - **Intermediate Product (A):** After the hydroboration-oxidation, an intermediate organic compound (A) is formed. 2. **Second Reaction: Grignard Reaction** - **Reactants:** Intermediate (A) from the first reaction, CH₃MgBr (methylmagnesium bromide) - **Conditions:** - Step 1: Addition of CH₃MgBr - Step 2: Hydrolysis using either H₂O (water) or H₃O⁺ (hydronium ion) - **Final Product (B):** This results in the final organic product (B). **Explanation of Products and Points:** - You are required to identify the two products resulting from each step of the reaction sequence. - Each correctly identified product earns 2 points, totaling 4 points for both products. **Hydroboration Overview:** - Hydroboration-oxidation is a two-step hydration reaction that transforms alkenes or alkynes into alcohols. - BH₃ adds across the triple bond in a syn addition manner. - Subsequent oxidation converts the organoborane intermediate into an alcohol. **Grignard Reaction Overview:** - The Grignard reagent (CH₃MgBr) reacts with the carbonyl group of the intermediate (A). - The reaction forms a new carbon-carbon bond. - Hydrolysis completes the reaction by converting the organomagnesium compound into an alcohol. ### Graph/Diagram Description: 1. **Initial Compound:** The structure diagram initially depicts 1-hexyne (a six-carbon alkyne). 2. **Arrow indicating reaction:** An arrow signifies that the 1-hexyne undergoes a transformation through specified conditions. 3. **Intermediate Product (A):
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