HØSO4, H,O H,SO4

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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Using arrows to show the flow of electrons, write a stepwise mechanism for the following reaction 

The image depicts a chemical reaction involving the transformation of an alkyne into a ketone through hydration in the presence of mercury(II) sulfate and sulfuric acid.

**Chemical Reaction:**

1. **Reactant (Left Side):**
   - A cyclopentene ring with an alkyne (triple bond) attached.

2. **Reagents:**
   - Mercury(II) sulfate (HgSO₄)
   - Water (H₂O)
   - Sulfuric acid (H₂SO₄)

3. **Product (Right Side):**
   - A cyclopentyl methyl ketone, characterized by a ketone group (C=O) attached to a cyclopentane ring.

**Explanation:**

The reaction shown is the hydration of an alkyne in an acidic medium, facilitated by mercury(II) sulfate as a catalyst. The alkyne undergoes an enol-keto tautomerization to form a ketone. This is a typical reaction for the conversion of terminal alkynes into ketones. The oxygen in the ketone group is shown with lone pairs of electrons, indicating its sp² hybridization state.
Transcribed Image Text:The image depicts a chemical reaction involving the transformation of an alkyne into a ketone through hydration in the presence of mercury(II) sulfate and sulfuric acid. **Chemical Reaction:** 1. **Reactant (Left Side):** - A cyclopentene ring with an alkyne (triple bond) attached. 2. **Reagents:** - Mercury(II) sulfate (HgSO₄) - Water (H₂O) - Sulfuric acid (H₂SO₄) 3. **Product (Right Side):** - A cyclopentyl methyl ketone, characterized by a ketone group (C=O) attached to a cyclopentane ring. **Explanation:** The reaction shown is the hydration of an alkyne in an acidic medium, facilitated by mercury(II) sulfate as a catalyst. The alkyne undergoes an enol-keto tautomerization to form a ketone. This is a typical reaction for the conversion of terminal alkynes into ketones. The oxygen in the ketone group is shown with lone pairs of electrons, indicating its sp² hybridization state.
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