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3) Predict the major organic product(s) of the following reactions. cat. HAUCI4, H2SO4 aq. MeOH reflux H3CO cat. HAUCI4, H2SO4 aq. MeOH reflux cat. HAUCI4, H2SO4 aq. MeOH reflux

3) Predict the major organic product(s) of the following reactions. cat. HAUCI4, H2SO4 aq. MeOH reflux H3CO cat. HAUCI4, H2SO4 aq. MeOH reflux cat. HAUCI4, H2SO4 aq. MeOH reflux

Chemistry
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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**Exercise 3: Predict the major organic product(s) of the following reactions.** 1. **Reaction Scheme:** - **Reactant:** Phenylacetylene (a benzene ring attached to a terminal alkyne) - **Conditions:** Catalytic HAuCl₄, H₂SO₄ followed by aqueous MeOH and reflux 2. **Reaction Scheme:** - **Reactant:** Methoxyphenylacetylene (a benzene ring with a methoxy group and a terminal alkyne) - **Conditions:** Catalytic HAuCl₄, H₂SO₄ followed by aqueous MeOH and reflux 3. **Reaction Scheme:** - **Reactant:** Diallylbenzene (a benzene ring attached to two propene groups) - **Conditions:** Catalytic HAuCl₄, H₂SO₄ followed by aqueous MeOH and reflux --- **Explanation:** Each reaction involves a substrate containing an alkyne or alkene group, treated with a catalyst (HAuCl₄) and sulfuric acid in methanol under reflux conditions. The purpose is typically to predict the major organic product(s) after the reaction. In reactions involving alkynes or alkenes under acidic conditions with gold catalysts, the mechanism often involves electrophilic addition, potentially leading to processes like hydroalkoxylation, hydration, or etherification, resulting in different major products depending on the substituents and specific conditions.
Transcribed Image Text:**Exercise 3: Predict the major organic product(s) of the following reactions.** 1. **Reaction Scheme:** - **Reactant:** Phenylacetylene (a benzene ring attached to a terminal alkyne) - **Conditions:** Catalytic HAuCl₄, H₂SO₄ followed by aqueous MeOH and reflux 2. **Reaction Scheme:** - **Reactant:** Methoxyphenylacetylene (a benzene ring with a methoxy group and a terminal alkyne) - **Conditions:** Catalytic HAuCl₄, H₂SO₄ followed by aqueous MeOH and reflux 3. **Reaction Scheme:** - **Reactant:** Diallylbenzene (a benzene ring attached to two propene groups) - **Conditions:** Catalytic HAuCl₄, H₂SO₄ followed by aqueous MeOH and reflux --- **Explanation:** Each reaction involves a substrate containing an alkyne or alkene group, treated with a catalyst (HAuCl₄) and sulfuric acid in methanol under reflux conditions. The purpose is typically to predict the major organic product(s) after the reaction. In reactions involving alkynes or alkenes under acidic conditions with gold catalysts, the mechanism often involves electrophilic addition, potentially leading to processes like hydroalkoxylation, hydration, or etherification, resulting in different major products depending on the substituents and specific conditions.
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