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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Draw the structure of the major product of the reaction shown above.
Transcribed Image Text:This image depicts a hydroboration-oxidation reaction, commonly used in organic chemistry to convert alkenes into alcohols.
**Diagram Description:**
- **Starting Material:** The structure on the left is an alkene with a branched carbon chain containing a double bond.
- **Reaction Conditions:** The reaction proceeds in two steps:
1. **BH₃/THF (Borane in Tetrahydrofuran):** In the first step, the alkene reacts with borane (BH₃) in tetrahydrofuran (THF), a solvent, which facilitates the addition of the boron atom across the carbon-carbon double bond.
2. **H₂O₂/⁻OH (Hydrogen Peroxide in Basic Conditions):** In the second step, the organoborane intermediate is oxidized using hydrogen peroxide (H₂O₂) in the presence of a hydroxide ion (⁻OH), usually from a base like sodium hydroxide. This step replaces the boron atom with a hydroxyl group (OH), converting the alkene into an alcohol.
**Overall Reaction:**
The transformation results in syn-addition, where the alcohol is added to the less substituted carbon of the original alkene, following anti-Markovnikov regioselectivity.
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