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Which of the following is the 1,4-addition product in the reaction shown below? A) HBr Br B) Br D)

Which of the following is the 1,4-addition product in the reaction shown below? A) HBr Br B) Br D)

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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**Match the Compounds with Their \( pK_a \) Values** Match the compounds on the left with the \( pK_a \) values on the right. 1. Ethane — \( pK_a \) 62 2. Ethyne — \( pK_a \) 25 3. Ethene — \( pK_a \) 45
Transcribed Image Text:**Match the Compounds with Their \( pK_a \) Values** Match the compounds on the left with the \( pK_a \) values on the right. 1. Ethane — \( pK_a \) 62 2. Ethyne — \( pK_a \) 25 3. Ethene — \( pK_a \) 45
**Question:** Which of the following is the 1,4-addition product in the reaction shown below? **Reaction:** - A conjugated diene reacting with HBr. - The reaction arrow indicates the addition process. **Options:** - **A)** - Structure: A 1,2-addition product where Br is attached to the second carbon of the diene. - **B)** - Structure: A 1,4-addition product where Br is attached to the fourth carbon, rearranging the double bonds. - **C)** - Structure: Another 1,2-addition product where Br is attached to the first carbon. - **D)** - Structure: A misplaced addition pattern where Br is attached to the third carbon. **Explanation:** For a 1,4-addition, the Bromine (Br) should be at the fourth carbon after rearranging the positions of the double bonds across the conjugated diene. In this scenario, Option B reflects the correct 1,4-addition product.
Transcribed Image Text:**Question:** Which of the following is the 1,4-addition product in the reaction shown below? **Reaction:** - A conjugated diene reacting with HBr. - The reaction arrow indicates the addition process. **Options:** - **A)** - Structure: A 1,2-addition product where Br is attached to the second carbon of the diene. - **B)** - Structure: A 1,4-addition product where Br is attached to the fourth carbon, rearranging the double bonds. - **C)** - Structure: Another 1,2-addition product where Br is attached to the first carbon. - **D)** - Structure: A misplaced addition pattern where Br is attached to the third carbon. **Explanation:** For a 1,4-addition, the Bromine (Br) should be at the fourth carbon after rearranging the positions of the double bonds across the conjugated diene. In this scenario, Option B reflects the correct 1,4-addition product.
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