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Why does the I end up there

Why does the I end up there

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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Why does the I end up there

**Reaction Overview:** The image illustrates a chemical reaction involving the addition of one equivalent of hydrogen iodide (HI) to a methylcyclohexene at an elevated temperature of 65°C. This is under thermodynamic control, indicating that the reaction conditions favor the formation of the more stable product. **Reactant Description:** The reactant is a molecule of methylcyclohexene, which consists of a cyclohexene ring with one double bond and a methyl group attached to the ring. **Reaction Conditions:** - **Reagent:** 1 equivalent of HI (hydrogen iodide) - **Temperature:** 65°C - **Control Type:** Thermodynamic control (indicated by the higher temperature), aiming to obtain the more stable product. **Product Description:** The product is a methylcyclohexyl iodide, where the iodine atom from the HI adds to the compound. The product depicted shows the iodine attached to the tertiary carbon, indicating the most stable configuration due to the resonance stabilization and hyperconjugation. **Note:** Thermodynamic control in this reaction suggests that heating the reaction helps to overcome the kinetic barriers, allowing the formation of the most stable product rather than the one formed fastest. This often results in the formation of a more substituted and stable alkyl halide. **Diagram Explanation:** The diagram shows: - On the left: The starting material, which is a methylcyclohexene. - A rightward arrow labeling "1 eq. HI" and "65°C" indicating the reaction conditions. - A thermodynamic control note indicating that the product formed is more stable. - On the right: The product, a methylcyclohexyl iodide with the iodine attached to a position that reflects the product's stability under these conditions.
Transcribed Image Text:**Reaction Overview:** The image illustrates a chemical reaction involving the addition of one equivalent of hydrogen iodide (HI) to a methylcyclohexene at an elevated temperature of 65°C. This is under thermodynamic control, indicating that the reaction conditions favor the formation of the more stable product. **Reactant Description:** The reactant is a molecule of methylcyclohexene, which consists of a cyclohexene ring with one double bond and a methyl group attached to the ring. **Reaction Conditions:** - **Reagent:** 1 equivalent of HI (hydrogen iodide) - **Temperature:** 65°C - **Control Type:** Thermodynamic control (indicated by the higher temperature), aiming to obtain the more stable product. **Product Description:** The product is a methylcyclohexyl iodide, where the iodine atom from the HI adds to the compound. The product depicted shows the iodine attached to the tertiary carbon, indicating the most stable configuration due to the resonance stabilization and hyperconjugation. **Note:** Thermodynamic control in this reaction suggests that heating the reaction helps to overcome the kinetic barriers, allowing the formation of the most stable product rather than the one formed fastest. This often results in the formation of a more substituted and stable alkyl halide. **Diagram Explanation:** The diagram shows: - On the left: The starting material, which is a methylcyclohexene. - A rightward arrow labeling "1 eq. HI" and "65°C" indicating the reaction conditions. - A thermodynamic control note indicating that the product formed is more stable. - On the right: The product, a methylcyclohexyl iodide with the iodine attached to a position that reflects the product's stability under these conditions.
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