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CH3 CH₂ HBr DMSO Br CH3 CH3 + Br CH3 CH3

CH3 CH₂ HBr DMSO Br CH3 CH3 + Br CH3 CH3

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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What type of mechanism is needed for this?

The image depicts a chemical reaction involving an alkene and hydrogen bromide (HBr) in the solvent dimethyl sulfoxide (DMSO). **Reaction Details:** - **Starting Material:** - **Structure:** 3-methylcyclopentene - **Description:** A five-membered ring with a double bond between the second and third carbons, and a methyl group (CH₃) attached to the third carbon. - **Reagent:** - **HBr:** Hydrogen bromide is used as the reagent. - **Solvent:** DMSO (dimethyl sulfoxide) is indicated as the solvent for the reaction. - **Products:** - Two products are formed: 1. **Compound 1:** - Structure: A brominated six-membered ring with a methyl group at the second carbon and another at the third carbon. - Description: The six-membered ring structure with bromine (Br) attached to the second carbon. 2. **Compound 2:** - Structure: A brominated cyclohexane with two methyl groups attached. - Description: The bromine atom is located at the second carbon, with additional methyl groups on adjacent carbon atoms. This reaction illustrates the addition of HBr to an alkene, resulting in the formation of brominated alkane products in a regioselective manner. The reaction conditions indicate that the solvent DMSO plays a role, possibly in facilitating the reaction or stabilizing intermediates.
Transcribed Image Text:The image depicts a chemical reaction involving an alkene and hydrogen bromide (HBr) in the solvent dimethyl sulfoxide (DMSO). **Reaction Details:** - **Starting Material:** - **Structure:** 3-methylcyclopentene - **Description:** A five-membered ring with a double bond between the second and third carbons, and a methyl group (CH₃) attached to the third carbon. - **Reagent:** - **HBr:** Hydrogen bromide is used as the reagent. - **Solvent:** DMSO (dimethyl sulfoxide) is indicated as the solvent for the reaction. - **Products:** - Two products are formed: 1. **Compound 1:** - Structure: A brominated six-membered ring with a methyl group at the second carbon and another at the third carbon. - Description: The six-membered ring structure with bromine (Br) attached to the second carbon. 2. **Compound 2:** - Structure: A brominated cyclohexane with two methyl groups attached. - Description: The bromine atom is located at the second carbon, with additional methyl groups on adjacent carbon atoms. This reaction illustrates the addition of HBr to an alkene, resulting in the formation of brominated alkane products in a regioselective manner. The reaction conditions indicate that the solvent DMSO plays a role, possibly in facilitating the reaction or stabilizing intermediates.
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