Ene N=N=N DME heat DME heat DME heat

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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The image consists of three chemical reaction diagrams, each involving a Diels-Alder reaction with the solvent DME (dimethoxyethane) and heat as conditions.

1. **First Reaction:**
   - **Reactant:** A molecule with an aromatic benzene ring attached to a conjugated diene system.
   - **Conditions:** Solvent DME and heat applied.
   - **Product:** Transformation implied by the arrow, suggesting a potential cycloaddition product.

2. **Second Reaction:**
   - **Reactants:** 
     - A molecule with two carbonyl groups (a maleic anhydride derivative).
     - A cycloaddition partner depicted as an azide group linked to a cyclohexane ring.
   - **Conditions:** Solvent DME and heat applied.
   - **Product:** Not explicitly shown, but likely a ring-expanded compound due to cycloaddition.

3. **Third Reaction:**
   - **Reactants:** 
     - A cyclopentadiene compound.
     - A phenyl-substituted molecule with conjugated double bonds.
   - **Conditions:** Solvent DME and heat applied.
   - **Product:** Implied to be a cyclic structure resulting from the Diels-Alder reaction.

These diagrams illustrate typical Diels-Alder reactions involving dienes and dienophiles, highlighting the significance of heat and appropriate solvents in facilitating cycloadditions.
Transcribed Image Text:The image consists of three chemical reaction diagrams, each involving a Diels-Alder reaction with the solvent DME (dimethoxyethane) and heat as conditions. 1. **First Reaction:** - **Reactant:** A molecule with an aromatic benzene ring attached to a conjugated diene system. - **Conditions:** Solvent DME and heat applied. - **Product:** Transformation implied by the arrow, suggesting a potential cycloaddition product. 2. **Second Reaction:** - **Reactants:** - A molecule with two carbonyl groups (a maleic anhydride derivative). - A cycloaddition partner depicted as an azide group linked to a cyclohexane ring. - **Conditions:** Solvent DME and heat applied. - **Product:** Not explicitly shown, but likely a ring-expanded compound due to cycloaddition. 3. **Third Reaction:** - **Reactants:** - A cyclopentadiene compound. - A phenyl-substituted molecule with conjugated double bonds. - **Conditions:** Solvent DME and heat applied. - **Product:** Implied to be a cyclic structure resulting from the Diels-Alder reaction. These diagrams illustrate typical Diels-Alder reactions involving dienes and dienophiles, highlighting the significance of heat and appropriate solvents in facilitating cycloadditions.
Expert Solution
Step 1: Interpretation of given problem

Given are organic reactions.

Given reactions are pericyclic reactions.

These are [4+2] cycloaddition reactions.

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