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Indicate the organic structure for the p...

Indicate the organic structure for the product expected when `2`-methylpropene is heated with acetyl chloride in the presence of anhydrous `ZnCl_(2)`.

A

`CH_(3)-underset(O)underset(||)C-underset(CH_(3))underset(|)C=CH_(2)`

B

`CH_(3)-underset(O)underset(||)C-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-CH_(3)`

C

`CH_(3)-underset(Cl)underset(|)overset(CH_(3))overset(|)C-CH_(2)-underset(O)underset(||)C-CH_(3)`

D

`CH_(3)-underset(CH_(3))underset(|)overset(H)overset(|)C-CH_(2)COCH_(3)`

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The correct Answer is:
To determine the organic structure of the product formed when 2-methylpropene is heated with acetyl chloride in the presence of anhydrous ZnCl₂, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Reactants**: - The reactants are 2-methylpropene (C₅H₁₀) and acetyl chloride (CH₃C(O)Cl). - 2-methylpropene has the structure: ``` CH3 | CH2=C | CH3 ``` - Acetyl chloride can be represented as: ``` CH3 | C=O | Cl ``` 2. **Understanding the Role of ZnCl₂**: - ZnCl₂ acts as a Lewis acid and helps in the activation of acetyl chloride by forming a more electrophilic species. The chlorine atom in acetyl chloride will leave, generating a positively charged acetyl cation (CH₃C⁺=O). 3. **Formation of the Electrophile**: - When acetyl chloride reacts with ZnCl₂, the chlorine atom is displaced, resulting in the formation of the acetyl cation: ``` CH3 | C=O ``` 4. **Nucleophilic Attack by 2-Methylpropene**: - The double bond in 2-methylpropene acts as a nucleophile and attacks the electrophilic carbon of the acetyl cation. The reaction can be illustrated as follows: ``` CH3 | CH2=C + CH3C⁺=O → CH3C(OH)(CH3)C=O ``` 5. **Formation of the Carbocation**: - The attack leads to the formation of a carbocation. The positive charge will be on the more stable carbon, which is the one adjacent to the double bond: ``` CH3 | CH2-C⁺(O)CH3 ``` 6. **Final Product Formation**: - The final product is formed when the chloride ion (Cl⁻) from ZnCl₂ attacks the carbocation, leading to the formation of the final product, which is 2-methyl-2-acetoxypropane: ``` CH3 | CH2-C(Cl)(O)CH3 ``` ### Final Structure: The final product can be represented as: ``` CH3 | CH2-C(Cl)(O)CH3 ```

To determine the organic structure of the product formed when 2-methylpropene is heated with acetyl chloride in the presence of anhydrous ZnCl₂, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Reactants**: - The reactants are 2-methylpropene (C₅H₁₀) and acetyl chloride (CH₃C(O)Cl). - 2-methylpropene has the structure: ``` ...
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