KMnO4, NaOH cold

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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**Image Description for Educational Website**

The image presents a chemical reaction schematic involving an organic compound transformation using a set of reagents. 

**Reaction Scheme:**

1. **Initial Compound**:
   - Depicted at the top, the structure displays a carbon chain with a double bond, indicative of an alkene.

2. **Reagents**:
   - The reaction involves the use of potassium permanganate (KMnO₄) and sodium hydroxide (NaOH) under cold conditions.

3. **Reaction Pathway**:
   - The initial compound reacts with the given reagents, resulting in a transformation.
   - An arrow points down, indicating the transformation process, branching into two outcomes:
     - The left path leads to an unshown structure, labeled with a placeholder "Select to Draw," implying the need for user interaction or further input.
     - The right path shows the formation of an alcohol, where the double bond is replaced, and a hydroxyl group (-OH) is introduced.

This graphical depiction aids in understanding the oxidative transformation of alkenes to diols (vicinal diols) using cold, dilute alkaline permanganate solution, a common laboratory procedure in organic chemistry.
Transcribed Image Text:**Image Description for Educational Website** The image presents a chemical reaction schematic involving an organic compound transformation using a set of reagents. **Reaction Scheme:** 1. **Initial Compound**: - Depicted at the top, the structure displays a carbon chain with a double bond, indicative of an alkene. 2. **Reagents**: - The reaction involves the use of potassium permanganate (KMnO₄) and sodium hydroxide (NaOH) under cold conditions. 3. **Reaction Pathway**: - The initial compound reacts with the given reagents, resulting in a transformation. - An arrow points down, indicating the transformation process, branching into two outcomes: - The left path leads to an unshown structure, labeled with a placeholder "Select to Draw," implying the need for user interaction or further input. - The right path shows the formation of an alcohol, where the double bond is replaced, and a hydroxyl group (-OH) is introduced. This graphical depiction aids in understanding the oxidative transformation of alkenes to diols (vicinal diols) using cold, dilute alkaline permanganate solution, a common laboratory procedure in organic chemistry.
A common alkene starting material is shown below. Predict the major product or missing reagent to complete each reaction. Use a dash or wedge bond to indicate stereochemistry, where applicable. Ignore inorganic byproducts.

**Chemical Reaction Process:**

1. **Starting Material:** The initial structure features an alkene.

2. **Reagents:**
   - Step 1: Hg(OAc)₂, water
   - Step 2: NaBH₄, NaOH

3. **Mechanism Overview:**
   The reaction likely involves oxymercuration-demercuration. This process typically results in the addition of a hydroxyl group (OH) to the more substituted carbon, turning the alkene into an alcohol.

4. **Instructions:**
   - Draw the major product in the designated area.
   - Indicate stereochemistry using dashed or wedged bonds as applicable.

**Diagrams and Boxes:**

- Initial alkene and alcohol images provided as reference.
- A dashed box labeled "Select to Draw" indicates where the predicted chemical structure should be drawn.

**Visual Explanation:**

The arrow from the original alkene structure to a blank area represents the transformation of the alkene upon treatment with the specified reagents. The alkene, when reacted as described, will typically produce an alcohol with specific stereochemistry.
Transcribed Image Text:A common alkene starting material is shown below. Predict the major product or missing reagent to complete each reaction. Use a dash or wedge bond to indicate stereochemistry, where applicable. Ignore inorganic byproducts. **Chemical Reaction Process:** 1. **Starting Material:** The initial structure features an alkene. 2. **Reagents:** - Step 1: Hg(OAc)₂, water - Step 2: NaBH₄, NaOH 3. **Mechanism Overview:** The reaction likely involves oxymercuration-demercuration. This process typically results in the addition of a hydroxyl group (OH) to the more substituted carbon, turning the alkene into an alcohol. 4. **Instructions:** - Draw the major product in the designated area. - Indicate stereochemistry using dashed or wedged bonds as applicable. **Diagrams and Boxes:** - Initial alkene and alcohol images provided as reference. - A dashed box labeled "Select to Draw" indicates where the predicted chemical structure should be drawn. **Visual Explanation:** The arrow from the original alkene structure to a blank area represents the transformation of the alkene upon treatment with the specified reagents. The alkene, when reacted as described, will typically produce an alcohol with specific stereochemistry.
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