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KMNO4 hot

KMNO4 hot

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 are the major products? Show stereo chemistry (wedge, dash or stick) and indicate if there are enantiomers.

 

### Oxidation of Alkenes with Potassium Permanganate In the reaction shown, an alkene (specifically, 2-methylpropene) is oxidized using potassium permanganate (KMnO₄) under hot conditions. #### Reaction Details: - **Reagents**: - **Alkene**: This is an organic compound containing a carbon-carbon double bond. In this case, the structure is a branched alkene known as 2-methylpropene. - **Oxidizing Agent**: KMnO₄ (Potassium Permanganate) is used. Under hot conditions, it acts as a strong oxidizing agent. - **Conditions**: - The reaction takes place under "hot" conditions, implying elevated temperatures are needed for the reaction to proceed efficiently. #### Expected Outcome: - **Products**: - Under hot, concentrated conditions, KMnO₄ fully oxidizes the alkene to form carboxylic acids or ketones, depending on the structure of the starting material. In this reaction, the alkene would likely be converted into two carboxylic acids due to cleavage of the double bond. This reaction is an example of an oxidative cleavage where KMnO₄ is used to break the double bond and oxidize the resulting fragments. The detailed mechanism involves the formation of a cyclic manganate ester followed by oxidative cleavage.
Transcribed Image Text:### Oxidation of Alkenes with Potassium Permanganate In the reaction shown, an alkene (specifically, 2-methylpropene) is oxidized using potassium permanganate (KMnO₄) under hot conditions. #### Reaction Details: - **Reagents**: - **Alkene**: This is an organic compound containing a carbon-carbon double bond. In this case, the structure is a branched alkene known as 2-methylpropene. - **Oxidizing Agent**: KMnO₄ (Potassium Permanganate) is used. Under hot conditions, it acts as a strong oxidizing agent. - **Conditions**: - The reaction takes place under "hot" conditions, implying elevated temperatures are needed for the reaction to proceed efficiently. #### Expected Outcome: - **Products**: - Under hot, concentrated conditions, KMnO₄ fully oxidizes the alkene to form carboxylic acids or ketones, depending on the structure of the starting material. In this reaction, the alkene would likely be converted into two carboxylic acids due to cleavage of the double bond. This reaction is an example of an oxidative cleavage where KMnO₄ is used to break the double bond and oxidize the resulting fragments. The detailed mechanism involves the formation of a cyclic manganate ester followed by oxidative cleavage.
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