Draw the major organic product formed by reaction of 2-hexyne with the following reagent: H₂O in H₂SO4 / HgSO4.

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**Subject: Organic Chemistry - Reaction of 2-Hexyne**

**Draw the major organic product formed by reaction of 2-hexyne with the following reagent: H₂O in H₂SO₄ / HgSO₄.**

---

- **Consider E/Z stereochemistry of alkenes.**
- **In cases where there is more than one answer, just draw one.**
- **If no reaction occurs, draw the organic starting material.**

---

**Explanation:**

For this reaction, it is important to understand the addition process of water (hydration) in the presence of sulfuric acid (H₂SO₄) and mercuric sulfate (HgSO₄) as a catalyst. 

**Steps to Approach:**

1. **Identify the Structure:**
   - Begin with 2-hexyne, which is an alkyne with its triple bond located between the second and third carbons of a six-carbon chain.

2. **Addition Mechanism:**
   - The addition of water to an alkyne generally follows the Markovnikov's rule, where the product is a ketone.
   - The reaction involves the initial formation of an enol (a carbon-carbon double bond with a hydroxyl group attached to one of the carbons), which then tautomerizes to form a more stable ketone.

3. **Considering Stereochemistry:**
   - For this reaction, note the formation of intermediate alkenes (enols), but the end product emphasis will be on the more stable ketone.

**Potential Outcomes:**

- **Major Organic Product:**
  - The major organic product of the reaction would be 2-hexanone. This involves converting the triple bond of 2-hexyne into a double bond (forming an enol), and then rearranging into a ketone due to keto-enol tautomerism.

Remember to draw the chemical structure of the resulting compound to visualize the transformation.
Transcribed Image Text:**Subject: Organic Chemistry - Reaction of 2-Hexyne** **Draw the major organic product formed by reaction of 2-hexyne with the following reagent: H₂O in H₂SO₄ / HgSO₄.** --- - **Consider E/Z stereochemistry of alkenes.** - **In cases where there is more than one answer, just draw one.** - **If no reaction occurs, draw the organic starting material.** --- **Explanation:** For this reaction, it is important to understand the addition process of water (hydration) in the presence of sulfuric acid (H₂SO₄) and mercuric sulfate (HgSO₄) as a catalyst. **Steps to Approach:** 1. **Identify the Structure:** - Begin with 2-hexyne, which is an alkyne with its triple bond located between the second and third carbons of a six-carbon chain. 2. **Addition Mechanism:** - The addition of water to an alkyne generally follows the Markovnikov's rule, where the product is a ketone. - The reaction involves the initial formation of an enol (a carbon-carbon double bond with a hydroxyl group attached to one of the carbons), which then tautomerizes to form a more stable ketone. 3. **Considering Stereochemistry:** - For this reaction, note the formation of intermediate alkenes (enols), but the end product emphasis will be on the more stable ketone. **Potential Outcomes:** - **Major Organic Product:** - The major organic product of the reaction would be 2-hexanone. This involves converting the triple bond of 2-hexyne into a double bond (forming an enol), and then rearranging into a ketone due to keto-enol tautomerism. Remember to draw the chemical structure of the resulting compound to visualize the transformation.
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