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0-C-Ph HBr -OH MnO2 NBS Ph A E B H2O2 D or PCC H2O2

0-C-Ph HBr -OH MnO2 NBS Ph A E B H2O2 D or PCC H2O2

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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Give the major product generated by each step of the following sequence of reactions
### Organic Chemistry Reaction Pathway The schematic illustrates a multi-step organic reaction pathway starting with an alkylated benzene compound and proceeding through several intermediates to the final product denoted as "E." Below are the details of each step in the reaction sequence: 1. **Starting Material** - The reaction begins with an alkylbenzene compound (ethylbenzene). 2. **Step 1: Bromination** - **Reagents: N-Bromosuccinimide (NBS) and Hydrogen Peroxide (H₂O₂)** - The alkylbenzene reacts with NBS and H₂O₂ to form intermediate "A." This step likely involves the formation of a benzylic bromide. 3. **Step 2: Conversion to Peroxide** - **Reagent: Triphenylmethyl Peroxide [(Ph)₂(CO₂)], often used under light or heat conditions.** - Intermediate "A" reacts to form intermediate "B," which is likely a peroxide derivative. 4. **Step 3: Radical Bromination and Hydroxylation** - **Reagents: Hydrobromic Acid (HBr) and Hydrogen Peroxide (H₂O₂)** - Intermediate "B" further reacts to form "C," which appears to be a bromohydrin or similar compound. 5. **Step 4: Formation of Alcohol** - **Reagent: Hydroxide Ion (-OH)** - Intermediate "C" undergoes another transformation to become "D," which is likely an alcohol. 6. **Step 5: Oxidation to Aldehyde or Ketone** - **Reagents: Manganese Dioxide (MnO₂) or Pyridinium Chlorochromate (PCC)** - The final step involves the oxidation of intermediate "D" to form product "E," which is either an aldehyde or a ketone depending on the specific conditions and reagents used. ### Diagram Explanation - **Chemical Structures**: The diagram includes the chemical structures of the starting material and various intermediates throughout the pathway. - **Reagents and Conditions**: Each arrow between intermediates is labeled with the specific reagents and conditions required for the transformation. - **Intermediate Labels**: Intermediates are labeled as A, B, C, D, and E to signify their position in the reaction sequence.
Transcribed Image Text:### Organic Chemistry Reaction Pathway The schematic illustrates a multi-step organic reaction pathway starting with an alkylated benzene compound and proceeding through several intermediates to the final product denoted as "E." Below are the details of each step in the reaction sequence: 1. **Starting Material** - The reaction begins with an alkylbenzene compound (ethylbenzene). 2. **Step 1: Bromination** - **Reagents: N-Bromosuccinimide (NBS) and Hydrogen Peroxide (H₂O₂)** - The alkylbenzene reacts with NBS and H₂O₂ to form intermediate "A." This step likely involves the formation of a benzylic bromide. 3. **Step 2: Conversion to Peroxide** - **Reagent: Triphenylmethyl Peroxide [(Ph)₂(CO₂)], often used under light or heat conditions.** - Intermediate "A" reacts to form intermediate "B," which is likely a peroxide derivative. 4. **Step 3: Radical Bromination and Hydroxylation** - **Reagents: Hydrobromic Acid (HBr) and Hydrogen Peroxide (H₂O₂)** - Intermediate "B" further reacts to form "C," which appears to be a bromohydrin or similar compound. 5. **Step 4: Formation of Alcohol** - **Reagent: Hydroxide Ion (-OH)** - Intermediate "C" undergoes another transformation to become "D," which is likely an alcohol. 6. **Step 5: Oxidation to Aldehyde or Ketone** - **Reagents: Manganese Dioxide (MnO₂) or Pyridinium Chlorochromate (PCC)** - The final step involves the oxidation of intermediate "D" to form product "E," which is either an aldehyde or a ketone depending on the specific conditions and reagents used. ### Diagram Explanation - **Chemical Structures**: The diagram includes the chemical structures of the starting material and various intermediates throughout the pathway. - **Reagents and Conditions**: Each arrow between intermediates is labeled with the specific reagents and conditions required for the transformation. - **Intermediate Labels**: Intermediates are labeled as A, B, C, D, and E to signify their position in the reaction sequence.
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